I agree with your list for the most part. From 5-10 to me is interchangable, but I think the top 5 is concrete.

1. Cotto
2. PBF
3. Margarito
4. Quintana
5. Paul Williams

PBF is still the #1 p4p fighter in the sport today, no question, but Cotto has done a hell of a lot more at WW IMO.