This is a tough one since all areas have amazing terrain.
http://xgames.espn.com/xgames/real/21169445/jackson-hole-21169544
http://xgames.espn.com/xgames/real/21169445/jackson-hole-21169544
Assuming Big Mountain means acreage and challenge not number of bars and day spas, my favourite is Castle Mountain in Alberta.
https://www.pugski.com/threads/unofficial-guide-castle-mountain-resort-ab.4764/
I vote for all of the above. One is simply not enough and there are way too many variables.
The only fair way to decide this is for ESPN to send us all on one week consecutive stays at each of these resort. Obviously there will be a lot of disagreement due to snow conditions and the like after the first round so follow-up trips.
Now ESPN only needs to decide if they are sending us in mass or in rotation. Thank you ESPN.
That explains why Big Sky is not on the list, which is my favorite (along with WB). For North America, that is.Interesting that they are all Mountain Collective resorts (probably since Aspen is the X-Games host) except for Whistler, which used to be. I wonder why they let it stay in?