None of those guys are fighting today, so that can't tell us much. Of the guys on the list, none of them beats Leonard or Hearns at WW anyways.
Mayweather's the champion. He is the best. He beat the champion and the former champion Judah consecutively and just beat a 154 ODLH. Who do you see at 147 beating ODLH other than Mosley who has his number.
They were beatable by fighters of a higher caliber than are on that list. Cotto and Hatton for sure would be murdered by Hearns and Leonard. Cotto most likely being KO'd by Hearns simply based on his style. Williams is an anomaly and may be able to do something very different with Leonard, though I feel he would still lose. Hearns would destroy him as well, as would he most WW. And while PBF would have the best shot here, both Hearns and Leonard are far larger than he is. This has nothing to do with who the best WW in the world is NOW though.
Has nothing to do with this discussion now and cant be answered til they finish shorting there upcoming fights. When there careers over each have a chance to be greats. Mayweather and Mosley are HOFer already, and Cotto and Hatton are paving the way. Yoy never know.
I said originally that it has nothing to do with this discussion now. The poster I answered brought up previous fighters for some unknown reason. I am just answering. Even with what they may or may not do, I feel looking at what these fighters have done in the ring, that Hearns and Leonard, Hearns especially, would be too much for any of them at this weight. Notice I didn't mention Trinidad.