The Westin and Hyatt are nice as is the Marriott. However, I am not sure that it is worth the shuttle ride in that the Airport Hilton is SO convienient and has a couple of nice restaurants. It I was to go off site, I would probably pick the Marriott because the food is good, service is solid and facility is well run. Westin and Hyatt are a bit large and convention focused for my tastes, but good as well.