I voted for Williams because he is the best welterweight at the moment - although a fight with Manny Pacquiao would be great as well.
Floyd against superior welterweights for sure will do his usual 1 punch then move out. Against Pacman might be a different story, he might underestimate Pacman and put a good fight. I voted Pac. My 2nd pick would be Margo who's got a pretty good chin ... skill was not the factor when he fought the skillfull Cotto, Margo's is tough.
i think cotto would be a tougher fight for pbf. paqiou would be number 2. But either way i'm down with him fight all of those guys except Hatton.
Everyone who clicked for Pac is a short sighted fool, the same sort of fool who makes Mayweather V the Big Show a success. Margarito, Cotto and Williams are OBVIOUSLY much more credible fights than Pacman.
I want him to fight Margarito more than anybody no matter what happens in Margarito's fights with Shane and Cotto.