If a fighter can beat another fighter 10 out of 10 times, that doesn't prove he's the better fighter. Hallman beating Hughes twice with ease, well we can all agree Hughes was the better fighter. But let's get really into it here. JDS/Cain. JDS ko'd him early in the first fight, but Cain destroyed him the next 2 times. Cain's first win over JDS was more decisive IMO than JDS's win over him. JDS landed that 1 shot but Cain destroyed him in every round in the next fight, and then again equally in the 3rd. No doubt about it, Cain would seem to be the better fighter because it's like we have proof and we all know that Cain would most likely beat JDS again if they fought. But styles make fights. Cain is a bad matchup for JDS. JDS has a better resume than Cain. Their wins cancel each other out except Cain has 1 more win over him. JDS is the better fighter IMO and would beat more fighters than Cain would beat. That's how to tell who the better fighter is. Going head to head in multiple fights doesn't say as much as most people make it out to be. I've always said that a prime Filho and a prime Arona would have their way with Anderson Silva. Yet I think Anderson Silva is the better fighter by far. The reason being, Anderson would beat most of the guys that Arona and Filho would lose too. MMA math, luck(even thought the better you are the more of a chance you will get lucky so it's not all luck), fighters going into fights more injured than others, hype, money, personality, and I want to say again LUCK is all part of the reason you guys get into such heated debates to the point where you think the other person is retarded. I remember right before GSP/Serra 2, I said on here even if Serra beats him again, GSP is still the best and I wasn't even talking about the style matchup, I was talking about there was another chance that there could be another fluke victory. Some guy replied to me saying that 'I don't know, I think if Serra beats him again then Serra just has his number' lmfao. Honestly the best way to go about it when picking who the better fighter is, is looking at their careers and comparing to other careers(especially in their primes). But even then, there's no real way of truly knowing who the better fighter is when it comes to the top level.