Athenee (Sept 2022)
Nice welcome fruit in room but limited elite recognition (Titanium + Marriott STARS). I booked Guest Room and upgraded to Club Royal (the suite was still bookable at the time of check in).
breakfast selections were good, but I disliked the taste. If you can access to Marriott STARS rate, it could be one of the best value Marriott hotels in Bangkok.
St. Regis Bkk (Oct 2022)
Point redemption stay, SNA applied. SNA upgraded to Metropolitan suite and further upgraded to Caroline Astor Suite.
Happy hour was better than nothing. They served mango sticky rice during the breakfast anyway.
If cocktail hour is not important, then St. Regis is better.