I'd take Rosario by KO, but he'd have to be careful the Black Mamba didn't strike first as he was a little suspect himself.
This is such an intriguing matchup. A nailbiter that could end at any minute by any fighter. Both would have to be on their game 100% focused for 3 minutes of every round. One minute of lax and it's over. Mayweather would have to start out using that incredible jab, Rosario would be stalking in that awkward hands high-elbows out style looking to land the right hand. With Mayweather's range, his also dynamite straight right hand would be the shot Rosario would be worried about and of course Mayweather's fragility of chin would have to be worried about the Rosario hand grenade. So many probablities in this one I wouldn't be betting the house if it had ever come down. The one thing is definite, bombs on either side would land, but who could handle/recover/finish the best is a flip of the coin. Scartissue
Mayweather may have the better legacy. But where they would have fought, most likely 135, I think Rosario was the better fighter. I think it could be a very close fight, but I see Rosario landing those bombs at some point and ending it.
i like Mayweather at 140 tho,but Rosario at 130 and 135,dont forget Rosario didnt have the greatest beard himself if Camacho would have sat down on his punches he could have taken him out.
At 135, I go with Rosie........... May's chin sucked below 140....... At 140 or 142, I like May over Rosie........ MR.BILL
Uncle Rog was chinny but he wasn't exactly feather fisted, and was quite skilled. He had a terrific jab that would trouble many a boxer, and the right hand to match it. But of course there's always the risk of being tagged on your egg chin, and Uncle Rog was very susceptible to that.