Jack Frost - only Mt. in the area that allows and encourages tree skiing, some steep terrain, good snow most of the time, going fast and carving turns on Thunderbolt and Challenge, good folks to ski with, get to take a run before riding a lift, nice views.
Elk Mt. - decent vert and sustained pitches on trails like Iroquois, and Mohawk, dedicated Bump Run, lots of great skiers there, great snow most of the time
Sno Mt - The North Face, White Lightning.
Blue Mt. - good lifts, razors, challenge and sidewinder are as fun as it gets in this part of ski country
Camelback - good lift system, free tickets to other Mt pass holders, stays open late, Pharaoh and Cliffhanger
Big Boulder - opens early and closes late
Whiteface - my new favorite Mt. - ridiculous vertical, steeps, Lake Placid