In my opinion, north cities are better than south cities. You can choose Beijing and Tianjin. This two cities are near each other. As everybody knows Beijing is the capital! If you want to live and study comfortable, I suggest you to study in Tianjin. There are good universities and language institute. I especially want to mention one wonderful private school named Tianjin EZ-Language Institute. You can visit their website at www.easylanguage-tj.com first.