Replying to Where should I take 360 uni mates skiing?

I'm on committee for my university's ski club and we're looking at where to book our trip to. The options are Les Arcs, Tignes, Les Deux Alpes and Mayrhofen. We could also go to back to Val Thorens (Christmas 2011), Val D'Isere (Christmas 2012) or Alpe d'Huez (spring 2013 & probably spring 2014). Where do you think we should go, bearing in mind that the parks probably won't be set up that well so early on, so we basically need good terrain and good nightlife?