I'm going skiing in Aspen in April! I can't wait to jump on that Silver Queen Gondola!
I was going to ski in Vail or Breckenridge because I've been there before and enjoyed some very good skiing plus those are great towns where you can have lots of fun.
The only reason I didn't book my ski vacation in one of those areas, is because I have a friend who has money to burn has a rental. I have hear that Aspen is a cool spot but the skiing isn't any better than less expensive areas.