Ragna the Bloodedge in BlazBlue
Those pants are a bit big for my own taste, but I guess he might be going to a rave so it's all good. With Ragna I have a pretty good variety at my fingertips. I usually do a dashing uppercut followed by a powerful grab move and some comboing. If you get close, Ragna can summon fucking jaws from the ground.
Diablo in Primal Rage
Diablo is one of the two Tyrannosaurus rex dino-beasts, and God of Evil. This flame-spewing demonic dinosaur wishes to reduce Urth into a nightmarish, magma-filled Hell where he wishes to indulge in his desire to torment the souls on the planet for eternity. He is nearly identical to Sauron's graphic model, albeit somewhat smaller and with a different color scheme. Diablo is quick on his feet and is an excellent distance fighter but is somewhat weak in close range. He is the leader of the Destructive Beasts, and hopes to burn the whole world in flames for all time.
I stole that paragraph from wikipedia. Fail.
Ken in Street Fighter series
Yeah, everybody uses this dude. It's just that his moves are so natural to use. Although when playing against other humans I sometimes button mash with E. Honda because I kind of suck.
Cyrax in Mortal Kombat series
He sports the Dtoid logo. End of story.
Who the fuck are your go to fighters?