Aaron Pryor vs Julio Cesar Chavez Joe Louis vs Evander Holyfield Sorry there’s just too many to pick so I will just settle for this blockbuster double header. I would pay whatever it would take or at least whatever I could afford.
This is tough, as there are many I would pay quite a bit to see. If only allowed one, I will go with Joe Louis vs. Muhammad Ali. That would settle a lot of questions. Still, I probably would not go over $200 (US) to watch it live. I am sure the results would be available, and, after the fact, it will turn up somewhere on television or the internet.
That would be a fun one! I think a lot of folks would take GGG but I don't think he would be nearly as effective with Tiger walking him backward.
Monzon v Hagler SRR v Greb B Leonard v Duran Olivares v Jofre Wilde v Lynch Napoles v Basilio spring to mind...
Muhammad Ali vs Jos Louis Honourable mentions: Sugar Ray Robinson vs Sugar Ray Leonard, Lennox Lewis vs George Foreman, Roy Jones Jr vs Ezzard Charles
Way too many options. Anyway my take: Prime vs Prime: Ali - Louis Ali - Tyson Benitez - Cuevas Hagler - Monzon Foreman - Holmes Foreman - Liston Leonard - Pryor Liston - Shavers Liston - Wlad (just to see how good Wlad truly was) Marciano - Tyson (just to put to rest the asumption Marciano could defeat Tyson). Oh, and certainlly I wish we could see a real Fairweather - Pacquiao bout happening when it should and not the mockery we saw.
Duran vs Mayweather at 135 or 140 Thomas Hearns vs Michael Nunn Hagler vs GGG Toney vs Canelo Willie pep vs Azumah Nelson Dejesus vs Lomachenko