Hearns would crack the code, along with Mayweather's chin. However, Mayweather would be at least competitive with any lightweight and featherweight in history.
Prime Paul Williams Prime Pacquiao Prime Sugar Shane Prime Delahoya Prime Venon Forrest Prime Sugar Ray Leonard Prime Roberto Duran... I mean, we could name dozens more....
HELL NO. They would have all had to face a PRIME MAYWEATHER. He's head and shoulders above everyone there, besides Duran.
Not a single one of those guys would have gone life and death with Castillo or Maidana in their prime.
Mayweather had a shoulder injury in the first Castillo fight and the Mayweather that fought Maidana was far from prime.
That guy had a torn rotator cuff in that fight, which he got surgery on right after. And gave a rematch right after Everyone on that list has lost to lesser fighters than Floyd. There's a reason why Shane/Mosley didn't want a piece of PBF iin his prime
A shot to pieces ODLH whom Pac anihilated took Floyd to an SD, imagine a prime ODLH. The same way a C level Maidana took Floyd to the brink whom Alexander shutout and a shot to pieces Morales schooled.
Everyone on that list has also lost to lesser fighters than Calzaghe. Calzaghe > Pac/SRL/ODLH/Mosley/Duran/Forrest. Strong logic is strong