Yeah great question. I have Ali a slamdunk at #1 all-time but if he lost 2 to Frazier I'd probably have Louis #1. Frazier as it is right now makes my top 10-12. I'm guessing he's top 6 if he takes 2 from Ali. Foreman destroyed Frazier and I'd have him rated over Frazier even if he won 2 or 3 from Ali becuase of those wins.