A prime Ali would make Tyson look silly. And as far as Bowe or Lewis stopping him...in your wildest dreams. I am by no means a Tyson hater...before he completely lost the plot he was a devastating puncher. But we will never know how good Tyson really could have been because he was mentally such an unstable person. But Ali was in a completely different class. Despite his larger than life image, people still sometimes forget what a special athlete Ali was. At his absolute prime, before his exile due to the war, he was as good a fighter the sport has ever seen.