It should be Contador vs Froome but there are so many other good riders who will make it a very entertaining tour without really having a chance of ousting those two.
Thibault Pinot is in cracking form so he’ll be one to watch on the mountains, being French and all that 100th edition thing he will be chased by Voeckler who will also want the mountain stages, especially the Bastille Day summit finish on Ventoux!, Jeremy Roy, Monfort, Ciolek appears to be riding well too, Van Garderen will probably lead BMC when Evans burns out at the start of the 3rd week and could be a top 5 finisher, Roche should finish in the top 15.
Throw in the likes of Sagan, Mollema, Fugslang (who was very impressive in the Dauphine), Dan Martin, Millar, Hushovd et al and its going to be fireworks right from the off with loads of possible stage winners.
Personally I’m glad Wiggo isnt riding, Froome should win it, Porte and Uran have been awesome this year and I think Sky have a stronger team than Saxo Bank so Contador will be reliant on Rogers and Sosrenson who just arent as strong. When it comes to one to one on the summit finishes, Froome can take Contador with those final km attacks.