On our last night there, we went to Nahm, which is David Thompson's restaurant that started in Australia, but moved to BKK. He is known as the foremost non-Thai authority on Thai food, and he probably knows more about it and its history than most Thai people.
I think it's impossible to give a dish by dish review - you'll see why in a second. We got the set menu, which turned out to be an unwieldy amount of food. The sheer volume alone was daunting - and try as we did, I think we barely made a dent in a lot of the dishes. This should not be an indicator of our enjoyment or its quality, however. In fact, we thought that the meal was amazing - so many of the dishes were so complex it would be impossible to try to describe them. Plus, I wished we had a list of what we ordered, because our one complaint was that a lot of the servers were hard to understand when they were presenting each dish. If we had a copy of the menu or of what we ordered, we could read the descriptions as we were having them. But it was worth getting the set menu to be able to taste so many dishes - we just thought the portions could have been a LOT smaller.
The set menu also opened our eyes to the sheer variety of styles that are available in Thai cuisine. Some dishes had some extremely bitter components, some very sour. Others fragrant and heady. Somehow everything balanced each other out wonderfully. Also, everything was perfectly prepared and executed, and the pacing was great. All in all, it turned out to be a fantastic end to the great BKK experience.