Been to Jay Peak a couple times. It is hands down the best powder I have experienced on the east coast. As long as you can deal with all the French Canadians running around and stinking up the gondola ride to the top you will be set.
That said, it is a long drive for only 1.5 days of riding. If you are short on time have you checked out Snowshoe in WV? 11 hrs vs 7.5 hrs
Go to Salt lake City. Check out expedia. All of the hotels offer ski packages to different resorts. The airport is a hub. You'll probably end up spending the same amount of money.
this. plus if you fly in early, park city will give you a free lift ticket if you show them your boarding pass. utah is the way to go for hit-and-run 2-4 day trips; snowbird, brighton and solitude. if one didn't get snow there's a good chance one of the others did.