That`s an odd question. You must be a little more specific about sites you like. There are a lot of good sites out there, but what is "best" lays in the eye of the beholder. So, even if you become more precise, I would probably still give you a variety of sites.
I think asian4you ARE THE BEST!!! Also [Only registered and activated users can see links. ]
Quality content is the first point when evalutating the quality I think, not quantity, but quality
Personally, I am bored with the classics. Hey, that`s why they´re called the classics!
I like the quality "amature" sites, like wifeysworld, or amateurallure etc...