Stage 17 looks fantastic. I've spent a few holidays around Annecy/Albertville, and the Cormet de Roselend, with its stunning lake and mountain views, is one of the most beautiful places I know. I'm guessing that will be preceded by the Col des Saisies out of Albertville, which is rather nice too. Follow it with a climb up the bottom part of the Little St Bernard Pass road to La Rosiere (think The Italian Job) and you've got a sure-fire belter of a stage that I'd love to be able to go to. Here is a taster, if anyone is tempted to go and just needs a little nudge:
The Cormet de Roselend:
The Lac de Roselend (Not me cycling, I regret):
EDIT: Correction. Stage 11. (Thanks Brommers).