My boss has a week long meeting in BKK in early November, and has asked for a suggestion for a 4-5 day break afterwards (his wife and another couple in attendance for the break). They've done Bali (FS), Chiang Mai( FS) and Phuket in the past.

I was thinking either:

1. Four Seaons Langkawi
2. Aman in Bhutan
3. Mandarin Oriental Chiang Mai

Which would you guys suggest? Are there any properties I am missing?

Thanks!