Those Ali- Frazier fights were among the absolute best heavyweight bouts of all time. I met Ali on 5th. Ave in NY back in the 1970's. He was a really big guy, like a refrigerator with feet! He was very nice, very polite and friendly. But I have to say I alway's rooted for Smokin' Joe, even when he later fought (and lost) to George Foreman. Joe Frazier had a left hook that could rip your head off.
A friend of mine bumped into Joe in Philly a couple years ago, literally. The Champ wasn't a very good driver in his later years, and his car collided with my friends at an intersection a couple of blocks from Frazier's gym. It was a very minor fender bender....I said, "But hell man, you got to meet Smokin' Joe Frazier and will have that story to tell forever." He wasn't a finesse fighter like Ali, but man he was all about bringing it to his opponent. RIP Champ!
Cheers;
Lefty