Do you think anyone could? Leonard, Hearns? I think Floyd would have beat the Fab 4... Who do you think has the best chance of beating FMJ and why?
Could have? Anyone. Would have? I'm not so sure but I'd have to look into more who I would favour and in what weight division.
At welterweight, many names. Robinson, Leonard, Hearns, Napoles, prime Donald Curry, Gavilan to name a few. At the lower weights he was a lot better and more dangerous, although there are still many LW's I'd pick to beat him.
Tommy Hearns is THE worst match-up for Floyd EVER. If Floyd is doing as much ducking as he is now, imagine how much he'd be doing in the 80's!