Killington has a very lively apres scene on the access road.
Okemo has Ludlow, a real town, which caters to the ski crowd.
Stratton has an artificial village right there at the base of the mountain, with bars and so on.
All three mountains are around a four hour drive from Brooklyn.
They will all provide you with what you are looking for.
Find the best financial deal and do that.
For the friends that are beginners, check the beginner package deals offered by the mountains for price.
Those deals should include equipment rental, lift tickets and lessons.
Check to see if those package lift tickets are limited to beginner terrain (likely), or if the cover the entire mountain.
If you think these friends might choose to get onto more adventurous terrain on day one, then also check to see what a lift ticket upgrade would cost.
This may involve a phone call once Thanksgiving rolls around.
Also check what a two-day equipment rental at the mountain will cost at each place. You might want to add a helmet to that rental (usually $10 per day).
All of you may be able to get a student discount for your lift tickets.