Anyway, check this out:
http://www.bruceleedivinewind.com/davismiller.html
I'm not sure if many have not already read it, but at least while Davis Miller acknowledged that Bruce Lee could fight, and could storm over many, he'd most likely lose to many as well. Plenty of de-mything.
However, I still think he stands a chance against people like Ali. But it's a 50-50, IMO. Ok, put it this way.. each and every one of us, we train and practice hard, so I'm sure even when faced with bigger and faster opponents, we know we stand a chance cos we've practiced for such confrontations (unless it's a FEW big and fast opponents, then erm, rain check). Bruce wasn't just any beginner martial artist, he was well-trained.
Heh, to stretch it further.. I think Bruce would be dead if he had to take on 2 Ali's at the same time.. but d'ya think Ali could take on 2 Bruce Lee's at the same time? just to yank your chains :P