I used to think Mayweather, but obviously even Floyd himself has his doubts , so I'm changing my vote to Pac. Floyd has mad skills, and he performs with excellence against opponents he carefully chooses, but he's fearful against the unknown. He even ran like a pigtailed schoolgirl from a confrontation with Larry Merchant. At this point any talk of a showdown with Pac is a joke. Instead, Floyd takes every opportunity to spread unfounded rumors about Manny like a ****y high school cheerleader would do about a feared potential rival. Even more absurd is speculation of a Floyd-Sergio Martinez fight. Floyd avoided Margarito and Cotto like they had rabies, and he's going to take on a bigger stronger Martinez?