Anderson will be the favorite in this fight, but Im not quite sure he's such a massive favorite as some people think is is.
65/35 Silva?. Depends on what weight they fight at. At 170lbs Id pick GSP to win.
Anderson best chance really is to time his strike when GSP shoots or he will be on his back, just like GSP only has one chance to win. Avoid the strikes and take him down grind it out. GSP has the best top control in the entire sport so Silva will most likely not get back up until the next round. I just dont see GSP getting caught in anything from the top even with Anderson's long limbs.
Or I might be dead wrong, we'll most likely find out in 2013!