I don't even class the Cotto/Pac fight as a proper WW fight. It was at a catchweight and I don't think any belts should have been on the line either.

Mosley is still number 1 as far as I'm concerned. I have no idea where Mayweather comes in at having last fought a LW and a JWW before that. Maybe Mosley, then Pac and only then Mayweather.