Mmmmmm....... My prediction - Floyd hasnt lost a step, he wins a 12-0 shutout, flooring Marquez in rd 2 or 3 with a well timed left hook, JMM survives & gets outclassed the entire fight, looking in a bit of trouble in about rd 11... Floyd lets him off the hook content on a pts win. Marquez later says that Mayweather would box the ass off Pacquiao if they ever met. 4 months later, Manny pulls out of a fight with Floyd who then signs to fight the no1 WW in the world, Shane Mosely. Never know, could happen :yep
Which is one of the reasons you will lose money on a FMJ-Pac fight if those 2 ever meet, you have to keep up with the form of the best fighters, not just Pacquiao.