All in their primes. Who wins? 135 Julio Cesar Chavez vs Floyd Mayweather Roberto Duran vs Manny Pacquiao Pernell Whitaker vs Shane Mosley 140 Aaron Pryor vs Kostya Tszyu Miguel Cotto vs Ricky Hatton Meldrick Taylor vs Zab Judah 147 Sugar Ray Leonard vs Kid Gavilan Thomas Hearns vs Sugar Ray Robinson Wilfred Benitez vs Felix Trinidad 154 Mike McCallum vs Terry Norris Julian Jackson vs Winky Wright Antonio Margarito vs Ricardo Mayorga 160 Marvin Hagler vs Gennady Golovkin Canelo Alvarez vs Carlos Monzon James Toney vs Bernard Hopkins 168 Andre Ward vs George Groves Joe Cazalghe vs Carl Froch Roy Jones vs Jean Pascal 175 Michael Spinks vs Bob Foster Dwight Muhammad Qawi vs Eddie Mustafa Muhammad Sergey Kovalev vs Artur Beterbiev Under 200 Evander Holyfield vs Oleksandr Usyk David Haye vs Murat Gassiev Vassilily Jirov vs Marius Breidis 200+ Rocky Marciano vs Jack Dempsey Joe Louis vs Sonny Liston Muhammad Ali vs Mike Tyson George Foreman vs Razor Ruddock Joe Frazier vs Riddick Bowe
Alright man, You got me on a day where I have time for SOME of these weight classes: 135 Julio Cesar Chavez vs Floyd Mayweather - Floyd's troubles w/Castillo at 135 lead me to believe JCC wins at this weight. Floyd wins at 140. Roberto Duran vs Manny Pacquiao - Duran stops Pac late. He was just plain and simple better than Manny. Pernell Whitaker vs Shane Mosley - Whitaker schools Shane. 140 Aaron Pryor vs Kostya Tszyu - It'd be a brutal war for 5-6 rounds, but then the Hawk takes over and runs Kostya's front running self over. Pryor TKO 10, with Tszyu likely quitting on his stool. Miguel Cotto vs Ricky Hatton - Cotto busts Hatton up and stops him late. Just better. Mel Taylor vs Zab Judah - Taylor beats the ever living crap outta Zab and stops him late. 147 Sugar Ray Leonard vs Kid Gavilan - Great matchup. The best you've listed so far. I think the Keed gives Leonard alllll he wants, but in the end I see Leonard pulling out a close one. Thomas Hearns vs Sugar Ray Robinson - Tommy fights Robinson on equal terms for a bit - maybe even drops him. But Robinson gets up, and once he lands his hook clean - Tommy ain't getting up. Wilfred Benitez vs Felix Trinidad - Benitez schools Tito. There's no way Benitez WOULDN'T be "up" for this fight. Tito would be bewildered. I'll get to the rest a bit later.
168: Ward beats Groves Calzaghe beats Froch (great fight though) Jones beats Pascal 154: Wright beats Jackson McCallum beats Norris Margarito beats Mayorga
About JCC vs Floyd. Bruh. What about JCC's lackluster performances (downright losses!) to Whitaker and Randall, both of whom were inferior to 130-140 lb. Floyd?
I've always maintained that Spinks would stop Foster in a great fight. He's quicker, and has a better chin, I think his Jinx gets there first, and if it doesn't, I have more faith he can take Foster's than vice versa. Qawi is awful for Eddie IMO. He'd counter jab and cut the ring off, going to the body and slipping Eddie's attempts to keep him off. Qawi UD. I'd take the Kovalev from the first Ward fight to stop Beterbeiv early. Beterbeiv likes to get in gear so to speak, and I think Kovalev will have been told to go and exploit this. If he doesn't, he gets annihilated to the body late.