IMO (in no order)
1.Loon (super sick, some decent booters, flowy, great rails and a few fun parks, decent pipe)
2.Mt Snow (lots of features, some good jumps, lots of parks, good pipe)
3.Sugarbush (good rails, okay jumps, creative features, flowy)
4.Sunday River (good jumps(for east), the JIB PARK :) , good rails, a few parks, kay pipe)
5.Killington (a few parks, good features, pretty good jumps, The stash. 22 ft pipe)
6.Waterville Valley (lappable, good rails, good jumps for TNF Open, fun parks, decent pipe)
7.Seven Springs (never been, looks sick, the Streets, good parks all around)
8.Sugarloaf (good jump line on Haywire, some fun rails, pretty sick features in general, pipe is fun (not too lappable))
9.Stowe (don't go often, but good rails, pretty good jumps etc.)
10.? (somewhere in NY? maybe...)