personally i went for david haye, if he lands clean and is well planted, i don't see many that could take that shot, huge ko% as well. not called the hayemaker for nothing, but abraham a close second.
I voted for Abraham. I figured that it's hard for any heavyweight to be any type of p4p. By increasing his weight, Haye decreases his hitting on a p4p basis.
Valero, although is opposition maybe quiestionable has knocked out 20 opponents inside 3 minutes, and has a 100% KO ration from 26 fights. Even against tomato cans, that is still an impressive record.