People do not move to squaw and immediately dominate the mountain.  I don't know about Jackson or Whistler because I have never lived in either of those places, but the best lines at squaw are thrown down by people who have lived there for a long time.  If Seth moved to squaw he would dominate fast, but are you really trying to tell me that if a ripping east coast local were to move to squaw he would be skiing the palisades better than Shane McConkey, Robb Gaffney, Scott Gaffney, JT Holmes or Kent Kreitler?  It takes time to adjust to terrain.  I have known many people who have moved from the east, I came from there myself, but the big mountain skill level of those who ski out west is simply much higher.  Some east coast skiers will eventually get great and dominate, the Gaffneys are good examples of that, but it takes time.  I felt like a much better skier at mad river or sugarbush than at squaw.  The stuff I skied back there was just not nearly as steep, ice or no ice.  If you think you could just step in and dominate the scene at squaw that is ridiculous, unless you are Seth, Sage, or Nobis, and those guys are west coast skiers.