If you are on your own dime, I recommend the Bangkok Marriott Resort and Spa on Priceline with a hard to beat price of $47/night. You have an excellent chance of getting a room at that price.

With the savings of about $250-$400 over staying at the Sheraton, book a cheap special where you live for a night sometime if you want a stay credit and use the rest to enjoy the wonderful food in Bangkok.

If you have to stay with Starwood, here are some threads to check out:

http://www.flyertalk.com/forum/Forum74/HTML/002908.html

http://www.flyertalk.com/forum/Forum74/HTML/003033.html

http://www.flyertalk.com/forum/Forum74/HTML/004347.html

http://www.flyertalk.com/forum/Forum74/HTML/005478.html

http://www.flyertalk.com/forum/Forum74/HTML/005482.html

Check out the differences between Sheraton and Marriott at

http://www.flyertalk.com/forum/Forum74/HTML/005272.html