<sigh>
Dawn, we're leaving in about two weeks, and we'll be at:
1. Marriott Amsterdam
2. Renaissance Chancery Court (London)
3. Marriott Bristol Royal (UK)
4. Marriott Portsmouth (UK)
5. Marriott cap d'Ail (Monaco)
6. Marriott CDG
I'll let you know.
More in line with your specific questions, the following is not from personal experience but from a lot of reading other FT'ers reports:
1. Marriott Budapest - great lounge, great views
2. Marriott Champs Elysees, Le Parc Trocadero, Ranaissance Vendome (all Paris) - fantastic hotels, but no lounges.
3. Marriott Rive Gauche (Paris) - good hotel, great lounge, good location.
4. Marriott La Defense (Paris) - good hotel, good lounge, not too good of a location.
5. Courtyard Neuilly (Paris) - OK hotel, out-of-the-way location - unsure about the lounge. As a tourist, probably your last choice in Paris.
6. Marriott County Hall London - great hotel, good lounge, fantastic (tourist) location.
7. Renaissance Chancerey Court (London) - great hotel, great lounge, great location.
8. Marriotts in Vienna and Prague all get very high reviews here.
There are a lot more Marriotts in Europe than Hilton (at least in places I'm interested in), and there are a
ton of them in UK where Hilton seems to fall down.
I know you're still clinging wistfully to Hilton (as am I, apparently

), but it's time to let go! Join us on the Dark Side! Marriott is blowing Hilton completely out of the water with their promotions, and there are simply oodles of great places to spend them points. Especially in the places where you (and I) like to spend them.