Bangkok is city where it’s difficult for me to pick hotels. Most everything is above average. Even the Holiday Inn Bangkok, at Gaysorn Plaza, is attached to the Intercontinental and practically the same hotel.
On the other hand there are very few properties that are so good they’re clearly better than all the others. It’s not a city where I stick to Hyatt, either, because while the Grand Hyatt Erawan is fine I don’t find it special.
The St. Regis was priced extremely reasonably for my dates and although the hotel is known for being great with suite upgrades, I decided not to just chance it or use a Suite Night Award but to pay for the suite. Long odds, as reported by others, but I hoped for a further upgrade.