Which fighters in history do you feel would have beat Mayweather without being biased

[monkeyboy]

Williams had some problems against southpaws. His losses all came against southpaws. Floyd is no southpaw.

Even then, Williams still KOd Quintana and did well against Martinez until that KO. When you risk it, you will lose some of those risky fights. Floyd tried his best to remove risk from the equation before entering into his fights.

Any semi decent middleweight and up.
A few of the aforementioned greats below such as SRL, Hearns, Duran. I also agree that Williams would have been a nightmare for Floyd.
PBF is great at 135 but he definitely took a careful path at 147 and up and quite rightly too.

[krazyn8tive]

Jose Luis Castillo, Marcos maidana and manny pac all won

[80sboxingrules]

he would have made duran look foolish. he would beat hagler too but it would be close.

he would lose to hearns though. too much size and too many tools. has good speed too. would have no respect for mayweathers power just like he had no respect for durans power

[HandsofIron]

Any of the ATG's of the Fabulous Four Era and some other old school guys.

[Bushbaby]

LOL I love Paul Williams, we from the same area but come on son. Carlos Quitana schooled him in the first fight. Dude couldn't get out of the way of a straight right hand. As far as Floyd not having a punch, that could be true but then wouldn't people have just straight up mauled him every fight i.e. Paulie M ? I think Floyd has another power to keep guys honest and rethink their game plans. I've spared with guys that were just so damn sneaky with their right hand they force you to readjust even when you think you got them figured out. By the end of the session, your like WTF just happened?!?! Floyd in any era woulda held his own. He may would have took a few L's from the likes of Duran and Hearns. but I think we would still be an all time great, Top 15 fighter. All the fighters that we think would beat Floyd had flaws that Floyd would have adjusted too. Just my opinion as I got Paul Williams as my P4p number 1

Williams had some problems against southpaws. His losses all came against southpaws. Floyd is no southpaw.

Even then, Williams still KOd Quintana and did well against Martinez until that KO. When you risk it, you will lose some of those risky fights. Floyd tried his best to remove risk from the equation before entering into his fights.

Damn, beat me to it. Quintana's straight right hand huh?? But he was a southpaw doe.

[elgu]

Duran TKO's him.

Leonard Tko's him.

Hearns KO's him.

Lol at the guys who think he would beat hagler.

Prime forrest at Welterweight beats him.

Winky Wright UD's him at 154.

Prime De la Hoya at 147 UD's him.

And that's just my limited knowledge.

[Sugar Adam Ali]

Meldrick taylor at 140

[etw926]

Nobody!!! 49-0 and you're still mad!!!

[yngwie]

I've got between 130 and 154: Roberto Duran, Tommy Hearns, Sugar Ray Leonard, Sugar Ray Robinson, Oscar Dela Hoya (prime=), Kid Gavilan, Julian Jackson, Mike McCallum, Sumbu Kalambay, Donald Curry, Paul Williams, Kostya Tszyu (early Kostya), Terry Norris, Julio Cesar Chavez, Aaron Pryor, Roy Jones Jr. and this one is really personal, call me crazy but i believe that David Reid would have beaten Floyd.

[DJ Enerate]

You beat me to it,, I was thinking the same thing

I think Napoles is a cert.

Kid Gavilan is another I would add to the list.