I had always assumed Alta was the more "expert" hill so very interesting to hear the "warnings" about Snowbird.
Funny... I think I'd always heard the other way. After 2 days at each last season at the Gathering, I agree that Snowbird is the more "expert" area. (Though I don't ski the expert terrain, so that's based on visuals and feedback from the folks that did ski it; And from the fact that the intermediate/advanced terrain at Snowbird seemed more challenging than Alta.)