I know at 34, it's already tick tock tick tock time for him so it would be best to just enjoy each of the competitive matches he'll be playing, whether he wins the title or not. He's achieved so much anyway, already.
Even then, using the objective head-to-head, Roger is still the man to beat on his side of the draw. Thankfully, none of the other top four guys are on his side of the draw so he's the favorite to get the semi-final slot.
He has some potential quality competition though in Alexandr Dolgopolov, Gilles Simon and Kei Nishikori. If he gets through, Novak awaits in the semi's and Andy in the finals.