Took a Stalker from 44 to 49 via two Treespecs and an LGTF.
Took a Dominator from 39 to 41 via ITF.
Started a Warshade and got her to 10 just by running missions from Shadowstar.
8 to 21 with My Soldier of Archanos
21 to 35 [and 35 to 38 today] for my MM Merc
23 to 30 [30 to 34 today] for my Assult Corruptor
Doom/Batman in 2012
The Resistance has boobs too, and better hair!
The Resistance has boobs too, and better hair!
Just love the avatar Mad Mud. 
//Jack
The Kickers base.
Those are my principles, and if you don't like them... well, I have others.
-Groucho Marx
Roughly 175 levels across about 10 toons.
Five of the toons were played at the same time. I ran all Dev Choice and all Hall of Fame arcs for them. Some of the other toons did less than reputable things including going from 1-35 in an hour or so. So it's not actually all that impressive. Should really be considered about 30 to 40 levels but 175 sounds way cooler.