Most powerful Marvel character
I'm gonna try and attempt a game thing now. Humor me, please.
Here's the way it works: I'll name a Marvel comics character, and the next person names a character who can take him in a fight (but don't go from Hammerhead to Galactus or anything; that kinda ruins it). Theoretically, we'll eventually escalate to Dark Pheonix and all that stuff. Repeats are allowed.
Starting us off:
Hammerhead