Some of PBF's toughest competition came at 130 where he seemed willing to fight anyone (Chavez, Corrales, Hernandez). And Pacquiao, while he looked great against Hatton at 140, probably fought his toughest competition, at least thus far, at 130 (JMM, Morales). So who wins here? PBF was a large guy at 130 who muscled around a lot of his opposition. Pacquiao seemed to have the power, on the other hand, to KO almost anyone at 130. Who do you think would've won this fight? At 130? Had the two shared the 130 pound division?
Mayweather, clearly. Pac is always strong early, but Floyd dominates mid to late. Floyd was significantly better than JMM.
Pacman for me, mainly because he's a southpaw(there's a reason Mayweather avoids the unorthodox stance). And also because at 130 I think Marquez could had done as good against Corrales as Mayweather did.