What to match with /EA?
Give Street Justice/EA a try. I've got a ~15 alt that does pretty well with that combo.

@Amarlex in game, on the Virtue server.
oh, I forgot... I have a level 18 or so StJ/EA too. It's a nice combo, but I'm looking for something with a bit more AoE.
	Go Titan/EA and never look back.
So much win; so much AoE.
Whirling Smash == Footstomp for scrappers.  Seriously.  Cannot go wrong with this combo.
Early levels are little slow as /EA has some of the most expensive toggles in a non-damage aura defense set, so before you get Energize and Energy Drain you'll be chugging blues.
Once you hit 35 though it's just rediculous fun.  
        
Staff/EA
I haven't played many levels of it, but I'm really enjoying WM/EA. ELM/EA is also pretty fun. I'd recommend either if you're looking for a bit more AoE.
	Kinetic Melee/Energy Aura
You're golden.  
        

DM/EA is a great combo. The heal and tohit debuffs of DM really help alot.
Level 50 is a journey, not a destination.
▲Scrapper Issues List - Going Rogue Edition▲
I have a Claws/EA Brute that uses the Vanguard claws set.
	Thanks folks, I think I'm going to continue with my KM/EA toon for a bit.  I will always wonder about KM until I get him higher level.  
I have a claws/Inv, SS/inv, WM/SD, Kat/WP and DM/WP which is why I'm not picking those primary powers.  That being said, DM/EA does sound like a special combo.
again, thanks!
        
| Go Titan/EA and never look back. So much win; so much AoE. Whirling Smash == Footstomp for scrappers. Seriously. Cannot go wrong with this combo. Early levels are little slow as /EA has some of the most expensive toggles in a non-damage aura defense set, so before you get Energize and Energy Drain you'll be chugging blues. Once you hit 35 though it's just rediculous fun.  | 
Level 50s: to many to remember at this point
| Please do some research before you post something like this. All the EA toggle are .26 end per second which is an average end cost for a defensive toggle and shared with like 15 other toggles among all the other armor sets. | 
Dark and Shield are .21 - Elec, Fire, and EA are .26, and get endurance mitigation tools. SR is .26 and doesn't get them.
Also please check the definition of "some."
Then there are the non-toggle-intensive sets, further pushing the cost of EA towards the higher end. Again speaking strictly before end mitigation tools are available. Like I said, after 35, the problem is non existant. It takes Tough, Weave, Manuvers, Assault, and Tactics for me to start feeling like I am burning too much blue.
I will grant that /EA lacks the toggles which are the most end intensive: dmg auras, CoF, and so on.

Over the past month Ive been building a few (too many) alts. I want to keep the /Energy Armor, but I have a KM/EA, FM/EA and a brute who is SS/EA. This is not the full list of the alts Ive created, just that I want to keep the /EA concept. I mostly solo and would like something for all content. I don't want a weapon on this toon, I already have a couple and I'm looking for a energy power kind of toon.

Help me pick!!!
Im thinking of staying with FM/EA. Ive turned the fire into a plasma energy theme. However, I guess the problem is I dont know what KM/EA is like at level 50. Its a nice set, but I just have too many alts.
Advice?