Aldo is still the GOAT, no doubt about it. Tied in number of title defenses with GSP (9 defenses) and both never popped for PED.... People seem to forget what happened to GSP, but he did get KOed by Serra, same way happened with Aldo and Conor. The difference is that GSP had a chance to rematch and to prove who was the best fighter and continued his streak while Aldo didn´t have his rightful rematch. Besides, the ONLY post USADA guy who stayed in activity and didn´t get popped is Aldo, GSP conveniently got out right before USADA came in and Silva popped and Jones is a super cheater with coke and PED, so.... Yes, ALDO is the man!!!!