Ice Blast/Kinetics.
Dark Miasma and Kinetics play very differently.
With DM, most of your work is done in the first 10-15 seconds of a fight. Select a target and put darkest night on them, hit them with fearsome stare, drop a tar patch on them, position fluffy as needed and then go to work on them with your primary, using twilight grasp when needed, with with all the debuffs, isn't often.
Kinetics is very, very buttonmashy. You will always be busy, siphoning speed/power, giving SB to someone, using transfusion/transferance, positioning yourself for FS. Add blasting onto that, and you get very busy indeed, although it is a good busy.
As for primaries, I don't know a lot about the sets you are after, but from the fire blaster I have played a bit, I'll say if you want big explosions, fire is the way to go.
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Thanks for the advice. I think I'll go with Dark Miasma, as it sounds like I'll be more in control of the situation that way (and to be honest, the way Clexeus just said Ice Blast/Kinetics makes me believe that it's one of them power sets for power levelers or... Power players. I hope you understand what I mean).
As for the primary, sure I like fire (not in a pyromaniac way though), and explosions, but the rifle has fire and explosives too, and blizzards and the ability to turn enemies into icebergs or useless with such low recharge and moving speed sounds fun as well. That's why I'm looking for a description of how their more iconic attacks look like so I can choose that way.
Oh, and by the way, I looked at how the Assault Rifle looks like, and I'm not sure if it's just because I'm using high graphical settings, but it doesn't look like a water-blaster to me, so no need to worry about that.
AR gun looks stupid. period. There is even a graphic mod out there that turns it into a SuperSoaker (no really.. that yellow/green one). Luckely its always in front of my character, so i dont have to see it that often. AR has a second downside, draw animation. Each power you do secondair will make you redraw your weapon if you attack again. Specialy kin this is serious annoying. Then again, FullAuto is a power that makes everyone smile.. bulletspraying (and a bind "Dodge this!").
Ice/kin.. ya we all know the fuzz about that set.
You can check rad, green beams of weird stuff being fired at the mobs. Specialy that ball trowing power is pretty 'magicial'. Downside, they dont do that much damage at lower lvl.
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No, I'm not interested in the Rad primary, thought the Radiation Emission is a possibility I guess, it's also mainly a debuff set, and while its heal isn't also a debuff, at least it's more reliable I guess...
But as I said, I don't think that the rifle looks stupid. So Full Auto looks cool? Can you describe it?
Update Edit: I think I'll go with either the Assault Rifle or Ice, because Fire is too... Direct, I'd say, and the massive DoTs on pretty much everything won't work well in teams as I plan to take advantage of Scourge as much as possible, which won't give tiem for the DoT to take effect.
As for the secondary... Well, does Radiation involve a lot of moving around and power activations and such like Kinetics? I'm thinking of either taking Cold Blast/Dark Miasma (which could work as a CoT-like demon, or a lich or somesuch), or Assault Rifle/Radiation Emission (uh... Some crazy military experiment? I'll have to think about it).
I compare the gun with the gun from Merc, void or Council.
FullAuto isnt really flashy like nrg nova or inferno, it basicly makes the sound of a machinegun for a while, while doing a massive dot cone-attack. Blizzard also does DoT, but in a target-click aoe, imho less impressive. If you team with Merc MM's, the commando with the first upgrade does full auto too. Main difference with the Nukes and Fullauto, you wont loose all your end (and 10 sec no recovery), it has a recharge of 16 seconds (versus 300 nuke).
Radiation is toggles and some clickie, most are target-aoe based. It has Accelc..something Meto..something (AM) wich gives recharge/mez resist/dmg/spd boost.
Ice/dark you should focus on tarpatch & icestorm/Blizzard, that is some damage.
I think AR/rad might be a cool set, i only tested AR/kin and AR/sonic.
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Ok, I've played Ice/Fire/AR all to a reasonable level as blasters and corruptors, and dark to a high level.
Ice/Dark is a lovely combo, if a little end heavy (ice is pretty endurance intensive because it is so good). Key powers, Ice bolt, Ice Blast, Freeze Ray, Bitter Ice Blast (love this power), Blizzard, and at a touch ice storm.
AR is pretty end intensive, but very satisfying for concept reasons - flamethrower, beanbag, ignite, full auto and the snipe are the best powers in my opinion, for effect or visuals.
Fire/Dark is an insanely good combination - tarpatch and rain of fire is brilliant for tearing through mobs, with fireball, blaze and inferno as other great powers.
Fire is visually the most impressive, and works well for scourging stuff (the extra dot does help) as that is how I play my fire thermal.
Out of them, all, I'd say ice/dark, fire/dark are good combos, ar/kin would be nice and busy too.
As I said before, I decided not to go with Kinetics, because it sounds to be too frantic. I like to have the ability to stay back for a while and look at the whole picture instead of running from here to there, always in the middle of the fight and only seeing my immediately surroundings.
As for the merits of Fire, how much better does it look than Ice and AR? I might think of going Fire/Dark (again, something with a demonic influence, with the more classical term I guess), or Fire/Radiation (which will be easier for me to make a concept for than AR/Rad), but as I said, it's too direct in that it's pure damage, and also I'm not entirely sure that I want a PBAoE nuke, though I do plan to take the 9-tier power on any set I do choose. Then again, if it leaps way over the other sets in the coolness factor, that might make it worth taking...
Bah, this is going to take a bit of time it seems... So now it's either Fire Blast, Ice/Cold Blast, or Assault Rifle and Dark Miasma or Radiation Emission.
I'd advise making a Fire blast/ Dark Miasma Corrupter. Those guys are pretty damn insane in PvE, and one of the best corrupter builds for PvE. Lay down Tar Patch hit rain of fire, fireball and firebreath-dead mob. Not to mention fantastic damage mitigation and a back up self heal. The main problem with Fire/Dark is endurance, however it is definately manageable.
You know, let's see. I basically think I can make a concept for Ice/Dark, Fire/Dark, Fire/Rad, and AR/Rad. I'll just give them a go until maybe... I finish the first contact or somesuch, see which one I like the best, then make a character with a concept using the chosen power sets.
Thank you all, you've been a real help. Too bad about Kinetics being too frantic. Maybe I'll try Ice/Kin and/or AR/Kin as well for kicks.
From my AR/Kin i would say, its a button-bashing player. Redraw animation you see nonstop, although they can kill faster then my AR/Sonic.
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Okay, AR's constant redraws got on my nerves, so my final set will be either Ice/Dark or Ice/Rad. Fire was still too direct for my tastes. 
Okay, I played both and got to level 6. Both are fun. While the Rad heal is less powerful, it is more reliable.
Now, I have questions about two powers, and depending upon the answers I'll know for certain if I want an Ice/Dark or Ice/Rad Corruptor.
So, Accelerate Metabolism, can someone give me a bit more information about it? I see different stats on its recharge rate and effects in different sites, from 300 to 450 seconds and from only higher damage and recovery to all sorts of things. So what exactly does it do, and for how long?
And then there's Dark Servant, I see that it can heal, but what else? It uses the same debuffs you already have in Dark Miasma? Not saying that it won't be great. Two Tar Patches can be a killer. Just that more information could be nice.
Seems like it's just two requests for extra information, not exactly questions... Oh well, still. At least I won't be generating any more chars called The Ranged to test the different set combos out.
Dark Servant (Fluffy to his friends) uses the following powers:
Twilight Grasp: Dark Miasma's heal. Also hits the target with a to-hit debuff, a damage debuff and a recharge debuff.
Petrifying Gaze: A single targe hold.
Tenebrious Tenticles: A cone immobilisation and to-hit debuff with a small damage component.
Darkest Night: Same as yours. An anchored bigish to-hit debuff (18ish%) and a damage debuff.
Chill of the Night: A damage aura (doesn't do that much damage) that also is a massive to-hit debuff (30% unenhanced). Use recall friend to get Fluffy to stand next to AVs.
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That sounds pretty cool. I thought about getting Haste & SS, but maybe that'll make it more worth while to take Recall Friend and Teleport, if I do take Dark Miasma.
Hello, if you recall I made an Energy/Dark Corruptor a short while ago based on a concept I had... But sadly it didn't work, I just couldn't make the character the way I imagined, most likely because my concept was originally for a character in a story, not a game (and there's a real lack of actual robes in this game, why only martial arts?).
Anyway, I looked into the different sets of the Corruptor, and from the selection I decided to choose between Fire/Cold/Assault Blast/Rifle, and Dark Miasma/Kinetics.
Fire, Cold and AR seem pretty interesting, and I like the heal+debuff that's a part of the secondary sets I chose. Now, my problem is... As can be assumed, all the first powers in any set have rather boring-looking graphics. Bolt of fire, ball of fire, ice bolt, ice fog, and the rifle's bullets. Now, my question is, can someone perhaps describe one of the cooler-looking powers from each set? Then I can see which one looks the best according to the combination of the description and my imagination, and go for that one.
As for the Dark Miasma/Kinetics question, that's a bit of a toughie for me, they both sound great. I really like the DM's fully-debuff-based concept, but the Kinetics sounds like a set that even with less debuffs could very well leave my opponents powerless but turning me and any allies of mine into power-houses (in fact, it sounds almost too good to be true, would I even need a travel power with speed boost and that reduced inertia thing?).
So, which of these secondary sets would be more helpful considering that I want to enter more of a support role while teaming by flinging debuffs all around, then picking off the half-dead enemies with scourge-powered blasts? I guess that I'd also rather use the less commonly seen set, but that's more of a tie breaker if both are just as useful.
All constructive advice will be most welcome.