I've held this opinion for along time. I still do. I think GSP wipes the floor with Silva... regardless of the size difference.
It's not a matter of fighter preference. It's a style matchup. GSP has the wrestling, sub defense, and cardio to win the fight.
Team PheelGood Fantasy Fight League
Jon Jones / Mark Hunt / Cub Swanson / Dustin Poirier / Darrell Montague