it takes me 8 hours to get to plymouth nh, which is basically the hub for loon, waterville, and cannon.
stowe is about 7 hours, killington about 6, and mt snow around 4 and a half.
whiteface is really affordable and there are good deals on lodging in the town of lake placid with a free shuttle to the mountain. id reccomend. takes about 6 hours to get there. ive slept in my car at killington and had no problem, just dress appropriately.