Nobody mentioned the view from the SF Marriott.

I nominate the New Orleans Marriott for its food.

Re: SLC, I don't remember(4 or 5 stays 2 years ago) it as any thing special, and there are several Marriotts where plats don't get the lounge floor - Somerset NJ is totally impossible (0 for 75 stays) unless its Christmas week or a weekend, Fall Church Va. is almost as bad.