I would like to see Silva vs GSP before he moves up! But He has had two fights at 205. One of them James Irvin, whch on was an impressive KO. But Irvins style has "KO me" Anderson written all over it. Then Forrest, a better challenge for him and he made one of the most respectful guys in UFC look like an ass. I do think that moving up to 205, however, will cement his legacy. If he can go u there and beat a dominant wrestler like Rashad or someone like that and maybe hold the title at one point, i will consider him top 1 or 2 GOAT.
My dream matchup is Anderson vs Lyoto. It will never happen. They are great friends and training partners and if they dont want to fight each other then ok. If u gave me a few hundred thousand I wouldnt fight my best friend either