What's your favorite place in China? 你最喜欢的地方在中国是什么？ I haven't been to that many place,s but my favorite place so far is Xiahe in Gansu province.  
我去的地方很少。 到现在我最喜欢的地方是 夏河 在甘肃省。

It's gorgeous. Here are some pictures that some traveler took.  I don't know if it has changed (I was there 10 years ago).
<a href="http://www.travel-pictures-gallery.net/china/xiahe/xiahe-main-1.html">http://www.travel-pictures-gallery.net/china/xiahe/xiahe-main-1.html

</a>Where are your favorite places?