Yeah,this Tour has a huge potential so far.It can be the best GT since 2010 Giro imo.Question is if it will deliver...
I hope all four/five main conteders will be in top form,but like Kwibus said,we will say someone was not.
Cobbled stage will be a fight between teams of GC conteders and GC conteders with themselves (punctures,splits,falls).
Sky and Astana probably have better teams than Saxo and Movistar for cobbles,but imo Astana and Movistar should ride it hard to distance Froome and Contador (like someone mentioned,if they will be in topform nobody will stay with Froome and Contador in high mountains).