Strong from the start
Furio--Lvl 50+3 Fire/Fire/Fire Blaster, Virtue
Megadeth--Lvl 50+3 Necro/DM/Soul MM, Virtue
Veriandros--Lvl 50+3 Crab Soldier, Virtue
"So come and get me! I'll be waiting for ye, with a whiff of the old brimstone. I'm a grim bloody fable, with an unhappy bloody end!" Demoman, TF2
Rad/Sonic Def
Fire/Dark Cor
Fire or Illu/Rad Controller I know some argue Kin but I like my pets even the unbuffable ones to get the most out of my other powers as possible. Debuffing the foe helps Phantom Army.
Plant/Rad or Kin Controller. So much fun... Course Fire/Rad or Kin likely eats mobs faster but is not as much fun on the trip up to 32. You did say awesome as early as possible so seeds wins again for making early stuff laughable fun.
DP/Dark Brute. I know... I haven't seen this combo mentioned myself about the boards so much. Who knows, perhaps it falls appart in later levels.... but I've been having fun with it into the teens, and it seems very strong. With my luck though it does fall appart into a steaming mess later. ;p
Oh and I made a Elec/Nin stalker. It takes a while to get fun... about into the teens/20's but once there... It isn't shabby at all.
I have to admit, my low level mind / en dom is quite fun. Even at the very beginning, at level 2, taking on pairs is nice. Sleep one target from range. The other turns, blast him, close in, Bone Smash, blast and he's done. Re-sleep the first target, blast, and done.
Against single target foes that are +1 it was really funny. That Skull is just minding his own business, leaning against the wall. Maybe he's staking the joint out for a heist later. It doesn't matter.
Oh, look at that he's gone and dozed off. Let's wake him up. Oh now he's crabby and running after me, maybe he should've slept longer. Eitherway he needs to get out of my face, and I don't like his mask, let's break it. Oh wow, now he's stumbling around in circles, poor tired guy, I'll just let him get back to sleep. Now that's cute, he's drooling. Ok actually that's kind of messy, let's wake him up again. Uh oh he's down for the count.