Wow what a question,
I guess I am a little biased towards restaurants as I am a chef and work in restaurant, but i am also very particular to what I eat and the quality and where the food comes from. Some may be a little expensive but they are worth it. So my favouritie restaurants are:
Domus Cafe
Social
Black Tomato
Earl of Sussex
Ahora
There are a few more but I won't waste everyone's time with reading them all