I pick Napoles, Pryor & Chavez at 140. Duran, Armstrong, Chavez, Whitaker and he could certainly lose to others at 135. At 130: Armstrong & Chavez. Prime De La Hoya beats Floyd at all three weights. Strange call of someone I always thought would give Mayweather massive problems at 130, is Fenech from the Nelson and Martinez fights.
FYI, Leonard had a 69" reach, Duran a 66" reach. Leonard was very quick, quicker on his feet than Duran.
No one I would pick with confidence from 140 (and very few at Welter as well) and below. Some names mentioned have a chance of pulling it off, but I am not sure there is anyone I would bet on doing it. I see a few very close fights that could swing either way, but I am in the minority for sure.
Away from the corruption in the den of iniquity, Vegas, Floyd has had at least 4 or 5 losses 0ne N/C & would have had a very long ban for the IV gate debacle. Everyone KNOWS why he did it. Man I wish they could have convinced the fraud to take on Antonio Margarito. To see Mayweather absolutely demolished alone would be worth the PPV. Remember Cotto?? As Tony slowly advanced Quitto backed away into the corner & sank to his knees in total surrender
Proven - Jose Castillo Very Likely - Armstrong at 135 &140 Somewhat Likely - Pryor at 140, Whitaker at 135 & 140 Possible - Ike Williams at 135, Julio Cesar Chavez at 135 & 140
How do we know who could beat him? He always handpicked everyone he fought. He fought Manny when Manny was old. It was all a construction of a record. He is a smart person who knows exactly who to fight and when. I give him credit.
Have you forgotten about the plaster fiasco. Cotto was likley hit with tamprered gloves. Margarito was nothing after getting busted for that