New York: Doubletree Metropolitan Hotel NYC
Continental breakfast in the executive lounge on a high floor (17th?). Actually very nice: cereals in little boxes, toast with jam in little jars, pastries, oatmeal with toppings, an assortment of fresh fruit including fresh berries, yogurt, juices, and best of all, an automatic espresso/coffee/cappuccino machine.

The lounge is a reasonable size, with free newspapers and areas where you can't quite hear the &$#@* television.

This is for Gold; I'm not sure what Diamonds get (full breakfast in the restaurant?)