I've been busy playing in the Free Form/Chaos thread. (It's getting addictive), but this is too good to pass up.
It's easy to pick Contador, but what fun is that? If he isn't banned he has to be the favorite - though from what I understand of the parcours it won't be an open and shut case for him. Probably, though, Contador will be banned, so the parcours won't matter for him.
Evans team will be a huge asset for him, only if - and it's a big if - the sum of it proves to be greater than the parts. My fear is that (the egos of) the parts will be greater than their sum, as usually happens with super teams. If the guys can really mesh together, accept Evans' leadership, and work for him - and if Evans shows up with the form of 2011 - the likelihood is high that we'll see him in yellow in Paris.
I agree with what Alpe said earlier, that Voeckler (or Rolland) or one of the other Frenchies could steal the Tour in the process of stealing one or more stages. It's certainly possible.
As for the others:
Fabian Cancellara - Would be awesome, but no.
Christopher Froome - Not gonna happen.
Tony Martin - See Cancellara.
Dennis Menchov - He'll be in jail.
Samuel Sanchez Gonzalez - Sorry Hitch, don't think so.
Alejandro Valverde Belemonte - Might be a possibility. We'll have to see how he goes after his lay off.
Bradley Wiggins - Top three, maybe, but not top step.
Other/ Vino - Who knows?