MW was at its weakest when Silva reigned. That fixed org had the best fighters at the time and some of the guys who fought in it are still relevant unlike their UFC counterparts. Silva also lost to his cans (Takase / Chonan). While Silva did make it look easy, it was against a bunch of guys who weren't that great before or after he fought them. All Weidman has to do is beat Souza and Rockhold and he'll surpass Silva.
GSP lol good record and all but I put him behind Fedor, Jones, Silva.
Silva is an all time great, top 2 (soon to be 3) don't get me wrong, that is amazing but I still have Fedor above him. In his prime, he didn't lose despite not really having many advantages. How many times do you hear a HW being #1 P4P? Who else beat as many champions as him? ADCC champs, Olympic wrestlers, Olympic Judokas, K1 champions, UFC champsions, Pride champions, the list goes on. He was the best if his time and did it all while being the smaller man. Sure there are some small guys that beat one or even 2 heavy weights but to get a streak that big against that level of competition, being that small is amazing. Not to mention, the rules were much harsher in Pride.
Also, the only time you could consider the UFC HW champion "the best" was after the SF merger, before that, any knowledgeable fan knew SF had the true champion. All this happened at the end of Fedors career anyway unlike Silva who was already a big name when he lost to his cans.
All the P4P GOATs are amazing, I'm not shitting on Silva but Fedor is #1 both P4P and the GOAT.