I'm debating of staying between the Westin and Prince de Gaulles. I know that the Westin, by far, has a better location for tourist (that is being more centrally located to attractions), but they don't have a lounge and don't offer free breakfast to platinums. Does anyone know what the Prince de Gaulles offer to platinums beside a room upgrade--possibly lounge, free breakfast, platinum amenity?

I'm also considering the Marriott Champs Elysees, as I've heard some good reviews by colleagues--free hot breakfast for platinums, nice room upgrade, etc.