Might be more fair if you restrict Yamamoto to sole hand to hand, he'd still win but it wouldn't be as massive a stomp.
Venom should win, but when has he shown better speed feats?
@The_Gorosei: That's his travel speed, not his combat speed. I know this argument is a bit rudimentary but it makes sense, take Kizaru for instance, he can travel lightspeed using his ability, with this logic he'd be capable of acquiring One Piece nigh instantly, but he doesn't. Instead of traveling hundreds of thousands of miles in a second he travels a few yards in microseconds.