Looking at 10 spaces and 16 weight classes (under heavyweight, which I don't include in p4p ratings) really of those 16 weight classes only a few are really up for debate

Light Heavyweight-Bantamweight

This gives us 10 spaces for 11 weight classes and with the debate as to who is THE MAN a little blurry in some divisions it makes the process a little harder but here's my take considering those things

1. Manny Pacquiao - he's tough he takes on great fighters and he beats them
2. Floyd Mayweather Jr. - the most talented by far but has only recently applied himself to finding worthy opponents
3. Joe Calzaghe - he's a long reigning champion and unquestionably THE MAN in his division
4. Jermain Taylor - he's young, undefeated, and always challenges himself with good opponents (Ouma aside/ he really wanted the Wright rematch to prove himself)
5. Winky Wright - he's nearly unbeatable, great at 154, just shy of being middleweight champion which dropped him on my list
6. Bernard Hopkins - old man, slips a lot due to the losses to Taylor but is on the list due to his fight at 175 which showed he can move weight classes and beat their top guy
7. Ricky Hatton - he's undefeated, he runs 140, he is looking to improve on his last fight
8. Jorge Arce - tough mofo, he's the only guy who falls outside my range of where I look but damn he's a good fighter.
9. Miguel Cotto - he just cracked my list with that win. he moved up, he fought a tough fighter and TKO'd him.
10. Israel Vasquez - he's a good fighter, fought some tough fighters took some chances and he's the man, he beat Jhonny Gonzales a very good fighter.

MAB didn't make my list because like ODH and Mosley I don't think he has fought enough and done well enough to be there....p4p is for PRIME fighters. Hopkins is on there because he showed even though he lost to Taylor that he could bounce back with BIG wins vs worthy opponents who mean something in their respective divisions