I would highly recommend Tignes. It is incredibly snowsure even early in the season (we had powder and sun and great pistes even early December). The resort takes huge care in keeping the mountain safe and the pistes are always well looked after. The off-piste is fantastic even if you are learning. The town has lots of great friendly bars and restaurants and many quiet parts of the resort eg Les Almes and Tignes Le Lac. It's not the prettiest resort but with a dusting of snow everything transforms. Probably more for early intermediates onwards rather than first beginners but there are enough runs for all levels. The buses are better than any other resort I've stayed in and it's extremely easy to find your way around the pistes as there are great direction signs. Enjoy.