It's about even steven between Tyson and Ali.
Youtube:"1988-03-21 Mike Tyson - Tony Tubbs" and Watch the first 10 minutes of that video to give you a glimpse of how larger than life Tyson was during the height of his reign in the late 80's.
It's a shame that without America's elite Heavyweight sized athletes participating in boxing, the sport will never reach the level of international prominence that it once had.
Just this picture alone makes Ali the most famous by miles...
"A picture is worth 1000 words."
http://www.maniacworld.com/muhammad-ali.jpg
When i see this picture all i can say is......Bad ass
Guys like Louis and Dempsey were bigger names than Tyson from what I've seen. Ali trumps them all.
Yea Louis was huge..and Dempsey sold out a stadium didnt he?