Replying to Grand Targhee vs. Revelstoke

So my dad and I are planning a trip to either one of these mountains and we are both expert north east skiers (moderate experience with powder over 2 feet). We are looking at Targhee because of the cost...if we went here the extra money we would save would be used for cat skiing or something like that. We are afraid that the hill will not be big enough for a week long trip and will get kinda boring after a while. Im confident this wont happen at Revelstoke. I was just wondering what you guys thought is a better hill/trip choice