If you want a mountain resort in a ski town, visit Jackson Hole, Wyoming.  You can see the beautiful Teton Mountains, and September is a perfect time of year to visit if you are not a skiier (right before the heavy snow falls in the winter months).  Downtown has some restaurants that serve a variety of exotic meats, and is a nice walk for the family with stores and tourist items.  Of course, there is plenty of skiing during the winter, but the typical ski resorts on the mountain seemed to be bare minimum accomodations, more of a “motel 6′ feel (presumably the price is for the convenience of being located right in front of the ski lift).

For the best resort in Jackson Hole, we strongly recommend The Wyoming Inn.  The Wyoming Inn is the most amazing hotel we have visited, with an elegant and spacious lobby, elegant gold brass fixtures in each room, and nice accomodations with large jacuzzi tubs and fireplaces for a romantic getaway.  The beds are luxurious and fluffy, and you are pampered with attention the entire time of your stay. 

My husband and I plan on returning as soon as we get a chance.