The St. Regis Aspen Resort

Full disclosure: I was here on a gifted weekend that included a free day pass to the spa. That said it is a truly 5 star hotel. The rooms are fantastic with real attention to fit and finish. I think one can really tell the quality of a place by the attention paid to the caulking in the bathrooms. Seems silly but these are the details that matter. The spa was great! Lots of amenities and the bathrobes provided were beyond compare. If you can afford a weekend away I think this would be a nice place to go.