I think prime Tyson is a much better fighter than prime Frazier. Tyson would land because he has the speed as well as the great upper body and head movement. He would be able to bust Ali up IMO. Foreman and Shavers hit hard, but Tyson did it from both hands and in combination. Quite overwhelming. I can see Ali on his bike all night, but having his own flurry moments. He couldn't stop Tyson as Tyson had a good chin.

I maintain that Vitali would have been good as his size was something different. He would get hit, but he threw 80 punches a round and could punch. Ali would have issues with the range. Ali was more of a David Haye in terms of height and build. Wlad was technically better, but bad stamina and delicate. I always enjoyed Vitali. He just seemed like such a tough bastard. Shame about the Lewis fight as he was winning that too. Lewis was okay, but I find him overrated. Easily outboxed by Bruno, bad stoppage losses, and a bit robotic. I can see Ali doing well there as Lewis was not that out of range.