I read somewhere that Floyd had some problems with Morales and this was around the time he was calling out Cotto. I remember him saying something like "Bob can put both of them against me at the same time and they could make it a tag-team match." It was something like that.
I'm going to have to go with Floyd for the simple fact that P-4-P means how a guy with any skillset would compete with guys in any weight class. It would be harder to beat a guy with Floyd's skills than it would to beat a Manny-like fighter. We've seen what it takes to beat Manny through Erik Morales. Just because Manny is a more likeable person, doesn't mean he is better p-4-p.
Casamayor is not going to take this fight. He's the one who's looking to fight smaller guys coming up in weight, instead of a guy who's the champ. What a scumbag.