Thirty-one years ago, Deer Valley invented all-inclusive ski-luxe, with valets who lug gear from car to slope, full-time concierges, and state-licensed child care – all designed to get you on the slopes fast and keep you there. It isn't cheap, but the three-to-one guest-to-staff ratio will usher you through everything from renting your skis to the Max 4 instruction program so efficiently, you'll clock twice as much mountain time. Deer Valley even has mountain hosts who stand atop each peak and give you insider tips on the best-groomed runs by the hour. "We can get you skiing on corduroy at 2 p.m., Christmas week, after 7,500 skiers have been here all day," says mountain host manager Chris Sherwin. Plus, five of its six peaks have groomed green runs, so you won't be stuck in one bowl all week.

More information: Lodging, lift, and meals from $243 a night;