To get the ball rolling, I’ll mention one of my favourite Thai restaurants, the relatively new Maenam, located on West 4th in Kitsilano. Now, I should issue a disclaimer. Maenam isn’t necessarily a traditional Thai restaurant – It’s more of a fusion experience, combining Thai recipes with local ingredients and culinary approaches from other parts of the world.
Charm Modern Thai in Yale Town is good too, it's not traditional Thai, but it is a fusion of Thai, Chinese and white style cooking. It is still very good, especially the modified version of Pad Thai.