Who would win?

The Greatest of all time vs The Greatest Welterweight of all time.

I have always thought that Silva would win but lately,for the past year or two I have been leaning towards GSP. He has all the tools to beat Silva. The one flaw in Silva's game is his TDD,he has struggled against wrestlers. St Pierre is a great wrestler. I still think Silva would win but I wouldn't be shocked if he didn't.

I don't know if or when this fight is going to happen. I think it will,I just hope it happens within the next two years.

So who would win? Vote and leave your comments.