First, Kenpachi from the Bleach anime IP. This guy is so bad-ass, he limits his own power even when facing situations that may end up with him dying. Why? Because fighting HARD is FUN. For example, he wears bells in his hair so his enemies will hear him coming, he wears an eyepatch that, as long as he wears it, sucks at his power, and despite being trained in fighting with a 2hand sword he uses only one hand as his blows would be too powerful otherwise. The first time he fights with both hands, he chops 2 arms off his enemy with a single blow, right through the 8 swords trying to block him. He is by far the toughest dude in the Bleach IP, because he doesn't talk to his sword like its a girl, or depend on its special powers like everyone else does with theirs. Of course, one might think its because his sword actually can't do anything, but knowing Kenpachi its because using the power of his sword would make fighting too easy.
Once, an enemy punched his heart out and he walked it off. Yeah, you heard me.
This is him with his eyepatch off. Yes, that's pure bad-ass glowing from his body.
Secondly, I would put Frogboy in there. Just for laughs. No Neo-like powers. There's just something... appealing... about the rook hitting him on the head with a hammer slam. I've said too much. 
