I stayed at Les Alpes with a friend for a 5-day skiing trip end of January 2011. We really loved the hotel and in particular the owners, Fausta and Juan Franco. They will do anything to make sure you have a comfortable stay. The food was very good.
One thing I also liked is, when you go for a drink after skiing, in the bar you will find a lot of different snacks free to go with your drinks. (This is rather common for the area I believe because we saw this also in an other bar).
As for skiing, Foppolo is great for short trips. Although the runs are rather short there are pistes suited for every level of skiing. And when we were there, even in the weekend when lots of people/families form Bergamo and Milan come skiing for a day, there was no queueing at the lifts. During weekdays you almost have the piste to your own.
All in all we had a great time in Les Alpes and Foppolo. When you go to Foppolo, and we heard this form other people as well, hotel Des Alpes is the best place to stay.
