Crystal is bigger, so it wins. Baker has NO lodging (well, OK, it has the Mountaineers lodge, but you have to join the club and it's very primitive) so you have to commute. Both Crystal and Alpental have some lodging, though not much.
Really, in my opinion the reason none of these places are as well known as the UT, CA, and CO resorts (as well as ID,MT, NM, BC, & AB) is that you have to be there at the right time. The snow can sometimes be epic, but by the next day it could be raining so it's just fine for the local who just doesn't go up on the crappy days and hits it when things are good, but for the tourist you could get skunked on a week long trip. I've skied in some of the aforementioned more well known areas and had crummy conditions there when it was dumping prodigiously at home. It's just averages.