It's impossible to know just what we would get if Floyd re-committed to the sport as a full time professional, with the same hunger and desire the others on the list possess. He has an inate talent, a rare ability, and that might well allow him to keep them honest and for him to hold his own...then again, he will probably be exposed and battered. Certainly, his age is the biggest factor. How shot are his reflexes, what is his gas tank like, does have enough to hurt someome like Spence? It's all conjecture. There really is no way to know. Though, gut feeling suggests it would simply too much to ask of him at this stage of his life. Instead of fighting these 'not even pre-amateur level' You Tube bums and midget kickboxers, I'd be far more interested in seeing him take on bona fide retired legends, like we saw with the Tyson v Jones jnr event. That at least, would have something extra, a missing ingredient, that his recent exploits lacked. Or, he could just retire gracefully and with dignity. Unfortunately, he seems as addicted to the attention and adulation as he is the money.
Probably not, although some of the lower end guys might find themselves outboxed or walked down behind the high guard and targeted with clean single shots at mid-range and on the inside. His style now is like a homeless man's Marlon Starling. Spence, Porter, and Crawford would make him look every one of his 44 years. A number of others would likely outwork him to a decision. He doesn't have the offensive timing or sharpness to leave much of a dent offensively and fighters would be far less worried about letting their hands go when Mayweather can't make them pay like he used to. It's clear to me that he exited the serious professional fight game at the right time; even against Berto, he looked like a shell of what he once was. He's clearly a shot fighter at this point. He knows it.
You're approaching this from the wrong angle The question is not would Floyd be a top 10 welter today The question is how much would Logan and Jake ''Money'' Paul have achieved had they taken up the sport earlier? Logan is the weaker brother but does anybody honestly believe that he wouldn't have won last night if he had just three or four fights worth of experience under his belt instead of just one? Imagine what a Logan with ten fights of experience under his belt would've done to Floyd last night?
He's shot, so he would be an underdog against all of those guys. For that matter, I'm not sure even prime Floyd would be a favorite against Spence at 147. His best weight was 135.
Yes Money is the Franchise Lineal P4P #1. This designation can only be lost in the ring. Since he is retired, He will take it to the grave.