Argo's list is great.
If you want to do pacific northwest (pnw) either south to north or north to south. Mind you that most of these hills are more small ski areas and not resorts with lodging like in Colorado...thus the camping.
Fly into Portland Oregon or Vancouver BC/Canada, rent a Van or suv and sleep in the van with an occasional motel. All of these hills are about 2-3 hours or less from each other. It would be easy to do a hill, then drive to the next one, sleep/camp in the lot (except Whistler...no camping in the lot), get first chair, ride all day and move to the next one. Whistler to Portland is about an 8-10 hour drive if you want to fly in/out of the same place. Also if you do this be prepared for dampness...but you don't have the cold and altitude to deal with. Additionally make sure to do BlackComb > Whistler...its a much better layout that follows the fall line much better than whistler.
Baker...has the legendary banked slalom in Feb.
Last edited by wrathfuldeity; 03-19-2014 at 01:05 AM.