Each one of the epics has interesting powers, depending on what you're looking for.
- Primal is nice because of Power Boost, even though it's recently been nerfed. For an ill/rad, it will improve your holds, confuse, fear, heal, -def, -tht, +/- speed and end drain. Otherwise the shield is OK (resists to S/L) and Conserve Power can be useful (e.g. use after EM Pulse) although its recharge is quite long. The single-target attack is fairly useless.
- Fire: good for extra damage (and different type) since you can get Fire Ball at 41. The shield is not bad (S/L resists plus a bit of Fire and Cold). Consume can be handy, but probably not needed on most ill/rad builds. Fire Blast is skippable.
- Psi: a good choice because of Indomitable Will especially once you cut down the recharge. The shield is very nice because of the psi resists and Psi Tornado is a fairly good (psi) AoE attack (damage is similar to Fire Ball although the recharge and activation are longer). Also it gives a bit of extra control since it does knockup. Like with the other sets, you can easily skip the single-target blast.
- Stone: a more defensive set with a good defense-based shield and the ever-so-lovely Earth's Embrace. Fissure is an OK AoE attack (short range though) with some stun and kback. Hurl Boulder does a lot of (single-target) damage, but is too slow to be of much use.
- Ice: a good compromise between an offensive and defensive set. Hibernate is very handy. The shield has both S/L defense and some resistance to cold and fire. Ice Storm does quite good AoE damage (especially with containment) even if the recharge is a bit long. Ice Blast:skip.
So that's about it really. They each have some good powers and can all work well in PvE, it really depends on your playstyle (and you can always respec).
CoX 50s: <ill/rad> <ice/ice> <fire/kin> <grav/sonic> <ice/storm> <earth/kin> <kin/elec> <cold/psy> <thugs/dark> <fire/dark> <dark/elec> <night widow> <EM/ninj> <mind/icy>
Thanks for the round up mate 
and yes I can always respec, i've got about 7 of them from vet rewards!
Hi Okton,
I think that your summary was pretty good except that you undersold Stone; I've tried all of them on my ill/kin and settled for Stone in the end.
Fissure is a great power the stuns and knockdown give nice control, the damage isn't bad and it recharges quickly.
Hurl boulder has recently had a cast reduction which has improved it - personally thought it was good before.
As you said though which Epic is best depends on individual play style and positioning. If you play in mellee then Stone is your best option if you don't go with one of the others.
L50s: Tanks: Cryofission - Ice/EM - Dr Celsius - Fire/Ice - Saint George - SD/SS | Controllers: Psichosis - Ill/Kin - Major Chaos - Ill/Stm | Scrappers - Neutron Crusader - DM/SR
Currently Levelling: Angelic Blade - BS/WP Scrapper | Seeds of Destruction - Plant/Kin Controller
Hi Psi,
I do think Stone is a nice set (I use it on my earth/kin), but I'm not sure it's the best for ill/rad (on my own I have Primal). I must say I haven't respecced into Hurl Boulder since it's been changed, so maybe it's better now. And you're right, Fissure is nice for melee toons (like most kins), but for others, I usually prefer the ranged Fire or Psi AoE attacks. On the other hand, you can do some nice IO set slotting (including procs/specials) with the Stone epic powers.
CoX 50s: <ill/rad> <ice/ice> <fire/kin> <grav/sonic> <ice/storm> <earth/kin> <kin/elec> <cold/psy> <thugs/dark> <fire/dark> <dark/elec> <night widow> <EM/ninj> <mind/icy>
For some odd reason, nobody has mentioned what Indomitable Will is. It's a click power which gives you scrapper-level resistances to disorient, holds, sleep, confuse and fear for 90 seconds along with defence to psi. Ill/Rads can cut down on the recharge a lot, though it's not perma without severely messing up your build. Just that alone is enough for most controllers to take it.
As for the single target attack, it might be a weak attack (considering pretty much all controller epic ST attacks are weakened due to containment making them 'too strong'), but it has a starting range of 100ft, default for most psi attacks. So, it can be quite a good pull move if you want.
As for the Psi Tornado, well, it's almost on par with Fireball, though in the controlling aspect, it's even better due to the knockup. You could even slot a Force Feedback: Chance for Recharge in there if you wanted...
Ideon's Paragonwiki page
Member of Paragon/Rogue Knights
Arc: 60092 - Supa Rumble in the Park
"Keep living the dream, and never let any jerk tell you what to do."
-- High-Roller
After trialing various sets on my Ill/Rad, I ended up going for psi and have been happy with it ever since.
Perma Indomitable Will is possible without messing up your build, it just costs a lot This is a must have power IMHO
Mental blast I use now instead of spectral wounds as my primary single target ranged attack.
Psionic tornado is actually only about 2/3rds the damage of fireball. But, it isn't bad against minions and the control element is nice as a bonus.
Mind over body is ok too, plus you can bung a -Res unique in it.
My primary reason for psi is that I wanted my ill/rad to be effective in pvp. The addition of mental blast is great for tipping the damage past what your PA can output and indom will is a godsend.
I took tornado so that I could slot another set of purples, having no other ranged damage options available.
Rgds
Fahie
Hello all,
So i'm at Ms Liberty and i'm struggling to choose an epic and was wandering if anyone had some advice. They all look good and tbh i'm not sure what i'm looking for for my Rad/Illu build.
Energy is at the top of my list, mainly due to Power Boost but i'm not sure how that works out in game.
any help would be greatfully appreciated
thanks,
Thunder-Heart