i'm with goatboy, marmot pass is hard to beat. you can setup camp above the pass, with the views, and have days of exploring. buckhorn is a great spot to watch the sunset, eat some HC. you can also do day jaunts down to Warrior/Constance area as well.
i love that place, really should be experienced during all seasons as the wildflowers are grand as well, rhoddedendorons in the spring, and the pass explodes like a freshie face shot in the late summer!