It would be a good one regardless of the winner and of course if you're used to being the bigger man, fighting someone bigger would throw a wrench in you're game plan. I think the speed advantage of ali outweighs the reach advantage of vitali because he could move in quick, hit with the jab, and get out of the way b4 vitali connected with his. There weren't many shots that hit ali clean because he rolled with a lot of them. It would be one of the best heavyweight fights to see from a style perspective.