The case has been made that, without his freeze breath, super-speed or invulnerability, Superman really ain't that tough. In the famous 1978 Superman vs. Muhammad Ali comic, a de-powered Kal-El had to face up against The Greatest of All Time and got smacked around by the champion. But, when you compare Ali to Little Mac's final opponent in the NES classic, it sure seems like Superman got off lucky. Read more...