I have no idea why most people are against Silva fighting GSp. I remember 2-3 years ago ,and after the first chael fight when the GSP train was rolling people heavily favor GSP in a Silva fight. I'm sure if he beats condit like he has every other WW the train will start up again.
You have a very different recollection than I do. Before Silva fought Sonnen I remember the general conensus being that he would easily destroy GSP. It was only after Sonnen took him down and kept him there for 4 1/2 rounds that people started saying maybe GSP could do that as well. Even after that it was never a significant majority picking GSP, it was still more like 50-50.