I'm surprise that Lucas haven't post on this topic, but I guess I'll pop the cherry for him.
Lucas - taught me that PvP is not just about winning... the boy take loosing/ getting aszwhooping as an honor/art and also how to become an 40yrs old virgin.
Bionic Flea - again he the first pal I meet through CoH, ole boy taught me the way to play every single ATs like a tanker.
Also, give a shout out to TG, DD, LG, Joe Normal, his buddy Pyro, and many others.