Snow Summit -- loads of crowds during the Thanksgiving weekend. Took about 10 to 15 minutes just to get on the lifts. I can only imagine how busy they'll be right now.
Mountain High -- excellent crowd control -- loads of people but little to no wait time for the lifts. Plus, they won't charge holiday prices until tomorrow, AFAIK.
Everywhere else -- I dunno.
RE: Snow
Most of the resorts will have packed man-made snow. Unless it starts raining again, that's what we'll have for the rest of the season. It won't stop me from going again in January, though.