Crawford might be competitive but Floyd edges it as Floyd is more of a known quality/more proven than Crawford against different fighters etc. The rest Floyd just wins every round and boring, probably gets a TKO against a couple.
Going by the athletic form he's shown in exhibitions, but assuming he's a bit better after full camps, he picks up some losses against currently more athletic, explosive fighters. He's more skilled than them with more in the toolbox, but age and a decade-plus of inactivity against world-level fighters is impossible to ignore. At some point, you can't overcome that even if you're an all-time great. I think he still decisions Barrios. He's just so ridiculously mediocre and I have no faith in him against anybody remotely decent. Haney beats him in a boring fight where he's just a clear step ahead. Rangy, faster, better reflexes, etc. I don't know about the others except Crawford, who beats him badly. A complete battering where Mayweather isn't even remotely competitive and probably gets seriously hurt.
I honestly think he could beat Rolly and Barrios. Barroso is only 5 years younger than Mayweather, and he was smashing Rolly to pieces before he got the short end of a horrendous hometown stoppage. There's a pretty strong case to be made that 147 is in the worst state it has ever been in. Crawford obliterates Mayweather in a horrible 3/4 rounds, but I think he'd be competitive against the rest of them.
Yeah that's what im trying to say, a 2026, 49-year old Mayweather who hasn't competed in a real fight in years looses to every single one of those guys.
I haven't seen enough of Barrios but he loses to the rest for sure. And probably Barrios. The rest absolutely crucify him. Crawford would maul him.
Ismael Barroso mate, he's 43 and was punching Rolly from pillar to post. Have a look at the highlights on YouTube.