Hi, glad to answer your questions and enter the contest.

For people like me who trade bitcoins quite often in Chinese exchanges, it's a common sense that the first top 3 exchanges in BTC/RMB are BTCChina, OKCoin and Huobi. Following is a short summery of what I know about these exchanges.

1. BTCChina (btcchina.com)
This is the first bitcoin exchange in China, which was founded in 2011. As I know, most of the Chinese bitcoiners believe it has the best reputation among the top Chinese exchanges, with three main services: the exchange (support both BTC and LTC), the bitpay-like payment service (JustPay), and the mining pool. The deposit of RMB is via an agent code called BTCC-Code, which you could only buy from BTCChina's partener agency. Trading UI is simple and convenient (but the UI changed several times since 2013), no lags or network latency. Website languages are both Chinese and English so I think it's not difficult for you to start with. Besides, they also offer a PC client trading tool.

2. OKCoin (okcoin.cn)
Actually OKCoin is also good but as they broke their promise for several times (about the trading fee, the BTC future and lever etc), especially due to the fake trading volume, I think its reputation is not as good as BTCChina. Nevertheless, it offers BTC future trading so for some people it's the best place. You could deposit via Bank and OK-Code (just like BTCC-Code), normally it's faster than BTCChina. UI is easy to use and remains the same since 2013 (good for user experience). Mobile apps and PC client are also available.

3.  Huobi (huobi.com)
Like OKCoin, Huobi also provides BTC future trading. But I rarely trade bitcoins on it because once (March 21st this year) its poor risk-control system led to severe margin call accident (LTC/RMB rate fell to 1), and the victims didn't get compensations as they promised. So I doubt their ability to run such business. On the other side, trading UI is OK, and deposit is quick.

My address is: 1As4Twy2RwNu9UbHsKw15by8kpEe2SbBLm