FMJ JMM Pac Sergio Donaire You could maybe swap JMM around with Pac, Sergio or Donaire if you prefered but I think JMM deserves No.2 for his perfomance against one of the top P4P fighters, whom many thought he beat. But also based their rank on their recent resume. I think Katsidis was a solid opponent but Juan Diaz wasn't as he was coming off a loss to Malignaggi. JMM's performance against Pac was why he is No.2 Pac's opponents have been quite overrated in my eyes, that's why when he stepped it up a notch, he struggled. Mosley (who was clearly shot) and Clottey were both afraid to throw punches and Margarito was clearly diminished. Although Margarito had some moments in the Pac fight such as Round 6, he was completely dominated. You could maybe argue that Likar Ramos, Katsidis and Diaz are not as good as Margarito, Clottey or Cotto. But Cotto was weight-drained at 145. Margarito fought Pac at a catch-weight and Clottey's performance against Pac was worse than Diaz' against JMM. Katsidis was also coming off his win against Mitchell, Cotto was coming off a controversial decision against Clottey, Margarito looked horrible against Garcia and Mosley looked shot against Mora. I think some may say that Pacquiao's fights looked so one-sided because of Pacquiao's caliber, but I say that Arum has been doing a good job fooling people with the quality of Pac's opponents. Hopefully he proves me wrong against Bradley who is a 'prime' fighter. If he can beat him convincingly, I will move him up to No.2 spot. Still, some will still say Bradley is not a good enough opponent... Now onto the No.4 and 5 spot. I think Donaire and Sergio are very close because their recent opponents have been contenders (WV2 and Barker). But I think Martinez edges it because his wins over Barker, Dzinziruk (who is tough to look good against) have been dominant with greater ease, whilst Donaire looked a little cut up after the WV2 fight. I think that you can switch them because of how close they are. Sorry if this post was too long, I just think that nobody explains their rankings with good enough detail, so I did