I think he would have a better shot than anybody else, but as far as I'm concerned, Mayweather is the best until somebody proves otherwise.
Pacman has nothing to lose if he fights pretty boy. Mayweather on the other hand... self proclaimed best POUND for POUND fighter in the WORLD. I'd like to see him put his hands down and showboat against Pacquiao like he loves to do in his fights. If he gets cocky like he always does, he'll get KO'ed for sure.