Replying to Utah

I am going to Utah the last week of feb. We are looking to ride a couple of different mountains and since we are coming from the east coast we don't care so much about park but want good mountain riding. We were thinking of staying near Snowbasin and riding there &Powder Mtn and maybe trying some mtns closer to park city also. We want to be away from crowds and go to places that are chilled out. What are everyones thoughts on Snowbasin & Powder Mtn and what are your suggestions near Park City? My husband snowboards so no Alta. Thanks!!!