Gsp or anderson silva?? youre thoughts?

whos the better fighter? who do you think would win this fight? Personaly i cant see how ppl can side with gsp on this one, i really can't. GSP has dominated welter. Anderson has dominated middleweight. so there pretty even both dominating there respected divissions. HOWEVER anderson made an even bigger legacy by moving up in wheight and not just beeting but DESTROYING his oppinants in a wheight class above, one being the former champ in forrest griffon. as for if they fight, gsp better hope he hold anderson down for 25 mins cause thats the only way. anderson has excellent tdd and amazing cardio, sonnen was on him the whole fight and anderson looked fresh. i dnt think gsp can td andy and gets destroyed on the feet by the bigger better striker.. anderson is the best there ever was and is at the moment hands down.