I think Mayweather would beat Forrest & that it would be more comfortable than people think. I think Shane could have beaten Forrest, but he fought stupidly in both fights. I think Vernon was an excellent fighter, but I felt Mosley gave those away by not having a plan b in those fights.

Winky would probably beat Floyd, like RozzySean says its a bad style matchup in all senses as well as a distinct size disadvantage. I think it might be competitive enough that Floyd could sneak a debatable SD on the cards, but I think most would see it as a loss.