ok im sorry i just read the thread again and if you can and your parents are willing to, go to Whistler. Other than that I would say Park City because you get other mountains near it if you are looking for a variety of terrain (The Canyons, Deer Valley). Or Tahoe. I am going to Tahoe for the first time this year and it looks sick. There are also a ton of mountains around there too.
Alta/Bird. Arguably the most consistent snow in the United States.
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(on October 2-3, 2009): Schweitzer receives first significant snowfall of the 2009-10 season. Ken Barrett, guide at Selkirk Powder Company, kicks off season by skiing down the ramp outside SPC's private lodge. Think Snow.