Dempsey his era rougher than the rest (transition from bareknuckle) 2 second tyson (ferociousness) 3 Foreman (size)
vitali would be more dangerous then liston in a street fight lets not forget his kickboxing backround
Probably couldn't go wrong with Tyson, or Hopkins. Tyson, because he throws 4 power shots in one second, with head movement. Also if he gets taken down he will bite the sh!t out of a mother f and come up with a chunk of thigh, or a piece of ear. Hopkins, because he went to a maximum security penitentiary when he was 17, and wasn't at the bottom of the food chain. Needless to say, the guy had to be able to handle himself in that type of situation. Most teens who go to max security become bubba's personal cabin boy. Hopkins isn't the biggest guy in the world either, so that makes his survival even more impressive. Also, probably could throw Jack Johnson in there, or any other black fighter who participated in battle royals and came out on top.