I don't like either MMA choices. Not that they're not great fighters (okay, GSP is great) but their performances this year do not warrant the honor IMO. Someone mentioned Jose Aldo - I think in terms of MMA this is the fighter of the year. He KO'd the champ (Mike Brown) to win the belt then completely dominated the previous title-holder (Faber). However, my vote goes to Pacquiao. I think what he accomplished this year and the manner in which he carried himself was just outstanding.