I am yet to be convinced that I should be supporting The United States over China. If I had to rate them, I would say the Chinese government treats its own citizens slightly worse than the US government does, but that it treats citizens of other countries better than the US govt does.
The US government violates human rights as defined by the United Nations (ie the guys who get to define such things), use their power to advantage their own economy at the expense of poor nations, ally with nations whom I don't beleive are moral.
In short, when China comes to power, I am going to be no more or less happy than I am now as a result of America being in power. I sure hope that the American population and government in general, and you in particular are capable of adjusting to no longer being the most powerful country. As a starting point, I would recommend you read a bit about history, economics and politics by authors that are not American, from how you write it very much seems like you have only heard a very particular viewpoint.
