Come on now Majesty surely you're not gonna bag Cotto and Mosley's WW records now are you?

Cotto-
Josh Clottey - Ring ranked WW # 4 Currently
Zab Judah - Ring Ranked WW # 6 when they fought
Antonio Margarito - Ring Ranked WW # 3 (currently # 5) -lost but see Plastergate.
Shane Mosley - Ring Ranked WW # 1 Currently
Carlos Quintana - Ring Ranked WW # 7 Currently, only guy to beat Williams, and now campaigning at 154.
Jennings, Urkal and Gomez were not top fights, but fillers or course.

Mosley- Mind you this is his second go around at 147
Antonio Margarito - Ring Ranked WW # 5 currently (considered the number 1 WW after Cotto victory)
Miguel Cotto - Ring Ranked WW # 3 Currently
Luis Collazo - Ring Ranked WW # 8 Currently

Mayweather-
Carlos Baldomir - Ring WW Champ
Zab Judah - Ring Ranked #5 WW when they fought (currently unranked)
Mitchell, Hatton, Marquez - unranked at WW currently or at the time PBF fought them.

I'm not saying Floyd has a bad record, but Mosley and Cotto have much better cases to be made for their WW rank fighting WW sized opponents.