My favorite of those so far is Les Discrets. Amazing band....I found their album at Amoeba in Hollywood a few months back too. I've been getting into Alcest quite a bit lately as well. The French really have something going on over there.
I'm a huge fan of Neige. I didn't even realize he was in Lantlôs until about 6 months ago. Those of you who like his work should really check out Neon if you haven't already, its probably my favorite album of 2010 so far.
Listening to the Les Discrets LP released this year for the first time...fucking great!!!! Beautiful, haunting, and ethereal. At times it really reminds of the clean vocal passages from the Bergtatt album by Ulver. Really glad you posted this band in this thread!