Im my mind one of the reasons why MMA is so popular is because their highlight reels are very good. When you can put a highlight reel commercial up of guys getting KTFO by Punches, knees, strikes, slams and elbows it is damn impressive.
Mine is Dan Henderson knocking out Wanderlei Silva at Pride 33. Picture perfect left hook followed up with an overhand right while Silva is laid unconscious. A close second is Yves Edwards knocking out Josh Thompson at UFC 49 with a flying kick as Thompson attempted a spinning back fist.
So what is your favourite MMA Ko?!?