I think it could go a few different ways. Dimspace, I'm choosing to be more optimistic than you and hope that it remains competitive. I think both Schlecks could be quite potent challengers (if they have an inspired time trial), and guys like Evans, Sastre, Menchov, Rogers, maybe VdV are all consistent and if they can catch a break or have on-fire form can really challenge Astana's on-paper dominance. But the really interesting thing for me is that the parcours don't have enough huge difference-making days to really eliminate the guys who are strong but not quite strong enough in the mountains... I mean, someone like Kirchen, or Sammy Sanchez, who wear out just a little too much in the mountains, can maybe be within a shout when the Ventoux rolls around and if either has a good day, can take it. Or who knows about guys like Gesink or Dekker? Basso, if he rides? Valverde, if he pulls a Houdini and escapes CONIs trap, would be a strong challenger.
Anyway, it's far too far away to really know what's going to go on. But I think back to 2007, where before the Tour I thought it'd for sure be a battle between Vinokourov and Valverde for the top 2 podium places, maybe gave Cadel a shot at the podium, but didn't even have Rasmussen or Contador or Levi on the radar screen. Just because Astana's good on paper, and because Contador looks like the real deal when it comes to Grand Tours, doesn't mean it's a foregone conclusion, is all I'm saying. The Tour often surprises.
Just my two cents.