Just back from a second year's Christmas skiing at PSV (Puy St Vincent). Stayed at Chalet Dame Blanche (1800m). Excellent position at the edge of a red run down to main 1600 hub, and quite easy to walk to access easier pistes down.
Snow depth, Christmas 2012, was phenomenal and resort fully open, but runs a bit icy. Less snow depth, Christmas 2013, and consequently not all of resort open, resulting in some queuing, but nothing excessive. Fresh powder on Christmas day transformed the place! As a family of intermediate and beginners we have yet to out-grow the place and its stunning scenery.
Fantastic family feel to resort; if you want bars and clubbing then look elsewhere. Instead, you get a friendly atmosphere; 60 instructors dressed in Santa outfits doing a torch lit procession down the mountain on Christmas eve!