Finding a place to ski for the winter in Europe

[skier_5]

I'm looking to spend the winter (mid dec - until season end) in Europe. I've done some research and have some potential candidates but I'm looking for comments on them and perhaps other suggestions.

My requirements/needs/etc are as follows

-I'm an expert skier and enjoy powder, tree runs, and other steep, challenging terrain
-Some sort of terrain park is a huge plus, but not a must
-Good, reliable internet is an absolute must
-Cost is not an issue for the most part, but I am trying to be as budget conscious as possible.
-Good nightlife, with young people (ie 18-25 or w/e) is a must as well
-ski in/ski out accommodation (or something with a short walk) is a huge huge plus. I don't really want to depend on a ski shuttle or something.
-in case it wasn't obvious, lots of snow.

Here are a couple places that I'm considering:

http://www.ski-europe.com/resorts/valdlsere.html
http://www.ski-europe.com/resorts/lesdeuxalpes.html
http://www.ski-europe.com/resorts/verbier.html
http://www.ski-europe.com/resorts/stanton.html