The question is did Fedor deserve to still be #1. Many say no. I agree that Werdum/Melendez need to be on the list, but not at the top. There is no way that Aoki/Alvarez deserve to be ahead of Penn. Beating inferior fighters is not grounds for raising against someone who lost to the #1 fighter in the world.
But Alveraz didnt lose twice in a row, neither did Aoki (the Sakurai bout were at a different weight and there werent in a recent row).
thats not top compition to you compared to...
Penn has defeated 6 former world champs to Aoki's 7
put those two list together and Aoki has beaten more champs then Penn. And you would be a true Zuffa nuthugger if you say Penn is doing better than Aoki. Penn loss 2 in a row, TO THE SAME GUY.
GSP is to Penn as Sakurai as to Aoki. GSP and Sakurai both won a descion the 1st bout and finshed them both in the 2nd. But these were different weight classes.
Look at it this way if your still upset:
In his last five bouts Aoki is 4-1 defeating 3 former world champs (Kawajiri,Hirota,Hansen)
Penn is 2-3 defeating only 1 former world champ (Sanchez)