A prime Tyson would have beat Liston up, he was a much better boxer than Sunny, he had great head movement and unbelievable hand speed. Sunny was just big and strong but nothing special and he won the tittle from a much smaller man in Floyd Patterson.

I think outside the ring Liston was the badder man, while Tyson has made dumb choices and mistakes in his life he has a good heart. Liston on the other hand was a thug with well known ties to the Mafia.