Singapore.
Unanimously, most foodies will agree Singapore is an enclave for delicious food from cross cultures:
http://www.travelchannel.com/shows/a...-for-singapore
http://www.travelchannel.com/shows/t...iles-singapore
Check out Anthony's Bourdain's video on Lay Over and his other episodes on Singapore.
He has some good recommendations like Tian Tian Chicken Rice (don't go at lunch hour, it's packed...try in between office hours.) He stayed at the Hyatt which is also a great location to get around the country.
Malaysia and Thailand have similar food for cheaper prices but you don't have the same convenience and amenities as Singapore. It's a foodie enclave in a first world country.