i feel there is no comparison between the two... having never skied grouse i cant say for certain, but since it is in Vancouver, i can't imagine it offers the terrain, snow or park options that stevens has
i think i was suggesting to go to whichever area had the best conditions out of the other two at that particular point in time. unless you are talking about getting a season pass to one or the other. also, don't forget seymour. however, i just realized, going north of the border might not be the best idea next year... so just go to crystal.