I would second JW Mariott Bangkok. Best Club Lounge I have experienced! Great staff and lots of food cooked to order at bfast and cocktail hour!

Another favourite is Mariott Budapest..horribly ugly building from outside. But all rooms have a great view. But best if you stayed in a corner suites with great views of the castle and chain bridge.
http://www.marriott.com/hotels/photo...WGRD&imageID=4