Here are my Top-5:

1. IC Hong Kong: food and drink quality, service, ambience: all top notch
2. ANA IC Tokyo: outstanding food variety and quality, fantastic service, drinks not great
3. IC Bangkok: service typically very good, but can be hit-and-miss, good variety but not outstanding food quality for breakfast and cocktail hour
4. IC Seoul Parnas: all nice, but self service and limited choices
5. IC Singapore: can be very crowded and loud, food and drinks are good, but not great in variety or quality.

in my opinion, not worth the extra money: Dusseldorf, San Francisco, Miami, Austin, Palazzo Las Vegas