Well, I guess I should say my favorite thing about China is my wife who I met when I was living there back in '96-'97. Besides her I'd have to say the culture, its just so dramatically different than anything in the West. There is also some incredible scenery, especially once you get out of the cities and head out to the west. Everything from beaches to jungles to deserts to the Himilayas. Definitely worth checking out if you have the chance.