Cotto-Mosley: to see who is really on top of the WW division.
Berto-PW: to see where Berto belongs, and to see whether Clottey or PW still belong among the top in the division, I am not sold on either of them.
Mayweather: winner of Cotto-Mosley if Hatton wins, or obviously Pacquiao if he wins.
Cintron-Clottey: to see who belongs near the top

And Collazo should be thrown into the mix somewhere.