Foreman. Tyson is a much better version of Frazier, but still similar enough to have stylistic problems with Foreman.
Tyson KO simply because I think he'd get inside early and make it count. Only when hes in his prime though, any other time big George gets him with a devastating KO
foreman had huge problems with lyle, tyson is hundred times better than lyle. he is a much better technician, i can't see foreman landing his looping punches on the always moving tyson. speed is also a huge factor, there is so much time to hit foreman he does his 'windmill' punches to the body, he couldn't do that against tyson.
Foreman would keep pushing him back and bombing away. They'd trade and Foreman would come out on top inside 5 rounds.
Foreman throws ill timed but accurate clubbing punches in pretty wide arcs. Tyson on the other hands is a mobile target with very fast feet who throws short, fast pucnhes in bunches, all hard. I pick Tyson, and I think the people who call it as an easy one for George need to look again. As has been said, George, just past his peak, struggled desperately with Lyle. Tyson is twice the puncher Lyle is, overall.
Big George by early ko. They would get into an exchange and big George gets the better of it. Tyson was a lot like Frazier and we all know how much of a beating Foreman gave him whenever they fought. Would be a good one to watch tho.