Mayweather is the favourite against all three but I'd give all of them a chance against Floyd because they all have strengths that give them a great chance, be it strength, speed, size, workrate they all have very good qualities against someone like Floyd to give them a great chance. If Floyd faught all 3 of those guys and remained unbeaten he'd be in the top 5 fighters of all time with no question, with a very strong argument for being the greatest of all time P4P. Now all we need is the fights to come off.