Always fun to debate who would win between two elite fighters at or near their prime, especially among the heavyweights. One thing is for sure - only with Rocky did someone win every single fight, every night out, while taking on the best around. From Joe Louis to Lennox Lewis, Ali to Jack Johnson, only the Rock kept that 0 on his record. For that, he can never be discounted in any hypothetical fight. He never excused a bad night, a bad cut (of which he had several), or a bad decision. When he was losing, he always - always - found a way to win, usually in the most dramatic way possible.