I think you must not read much American media. The tone of coverage towards China is a mix of fascination mixed with fear. The better informed observers note China's enormous internal problems along with its impressive growth.

HRW has issued reports and press releases regarding Bahrain's repression of its demonstrations, the same as they have done for other HR violations. I'm a bit confused at why you would insist that they wouldn't do so:

http://www.hrw.org/middle-eastn-africa/bahrain