Originally Posted by
3544quebec
Where there is a lounge (usually a Sheraton but some Westins as well) breakfast in the restaurant is not one of your Platinum Amenity options.
Your choice of welcome gift upon arrival — choose from bonus Starpoints, continental breakfast or local amenity.
...
Complimentary health-club, Club-level and Executive-level access.
I don't see a note that these are mutually exclusive. It would be rather odd to select breakfast when a lounge is available, but I don't see it restricted. (thought I've never thought of selecting it, so I haven't looked very hard)