I feel Canelo could of, certainly if he fought Benitez at 154 because he couldn`t make 147, the same with Duran, Canelo was better than Duran was at 154, lets say he picks up that one loss to Hearns at 154 I feel he beats him at 160 in a classic, he could have at least got a draw v Hagler also although doing 15 rounds would be tough but Ray was tiring v Marvin and didn`t do a 15 rounder in `87. But that isn`t 5 wins though.
Maybe Mike McCallum, he was really good at 154, he may have met Benitez and Duran at the weight as they fought there, he would have beat Hagler in `87, maybe picking up a draw and a loss v Hearns at 154 0r 160.
Ray Robinson and Mickey Walker have a great chance of it imo. Hagler is the only problem I see for both
Tommy Ryan would be able to do that based on what we know but without footage it's very tough to say. Unless this is about MW versions of each fighter, then I'd take quite a few MW greats to accomplish that.
Are we talking Canelo with his favorable Vegas cards? He doesn’t have the style or stamina do fight in long enough spurts to beat ANY of those men.
Kid Gavilan could IMO beat Duran, Hearns and Benitez at 147. I would pick him closer against Leonard. He ain't beating Hagler though.