Can anybody list one controversial fight that Tyson won? I can think of over a half dozen controversial fights Ali won from pre to post prime. Moreover, Ali lost two tough fights at or near his prime. Maybe some of you ain't got the email yet, but Ali, like Tyson, is beatable.
So, again, suddenly after Foreman, Ali shoots way up to be talked as the best ever. Is the criteria for greatness getting the crap kicked out of you and then pulling out the fight? Maybe the Foreman upgrade is just part of a delayed reaction to upsetting Liston, or maybe the heroic effort against Frazier. I just find Ali's career to be very inconsistant for such great acclaim.