Which fighters do you think took the most punishment during their careers? Two current fighters come to mind: Hasim Rahman (huge Lewis KO, massive Maskaev KO) Katsidis (gets cut in every fight, win or lose)
Arturo Gatti Fernando Vargas Lamon Brewster Erik Morales Antonio Margarito Joe Frazier Muhammad Ali Matthew Saad Muhammad Bobby Chacon Evander Holyfield Riddick Bowe
Cotto - his last 5 or so fights are unbelievably quality fighters. He fought the top 5 WW (bar floyd) in his last 5 fights, not to mention WW is the toughest competition division nowadays.
From my island: Miguel Cotto and Wilfredo Gomez. They both fought all the best opposition available. One after the other.