What's your favorite root canal?
I'm in southern CT, and won't go past the big "K", or else I'll get on a plane and go to Utah.
So, to answer the question, as far as Killington and south, well Magic is great if there's real snow, Mt. Snow is fine mid-week when all the NYer's stay home, Killington's fine as long as you like endless traverses, then there's, ahh, humm, well. Gheesh.
Let's see, Okemo's flat as a pancake (have you seen the ad where they say they have "5 mountain peaks" - har, har), Stratton you have to get past all the NYC lawyers and dentists (that's not a glowing endorsement, btw) with the latest stuff who barely know how to put it on, Bromley, where you have to go about half way down the hill to get enough speed to turn, Attitash, that I remember absolutely nothing about.
OK, let's stick with Mt. Snow, Magic and Killington up until mid VT, then go to Utah if you're going farther than that.