EDIT: I don't know why people are downvoting you. Your opinion is valid and contributes to the discussion at hand...
Things looks dark for democracy sometimes, especially since 2007, but it is worth remembering that the list of continuous surviving political systems is dominated by democracies
But that's not true. According to a report by the Economist, 50.5% of countries are democratic in nature and the rest are either a hybrid or authoritarian.
http://graphics.eiu.com/pdf/Democracy_Index_2010_web.pdf
So looking at the evidence, one particular system isn't more dominant than other systems.
Everyone talks up China's system but they don't really understand the system or how broken it is. It is on the verge of a massive crisis.
I would agree, it is indeed on a verge of crisis. But, I'm not entirely sure you understand my point.
Reading your original post, you blamed the one party system in China as the root cause for censorship over the smog documentary.
I disagree and I think you are being blinded by Western bias/propaganda toward democracy.
The censorship issues in China are much more complex and the political problems of China cannot be reduced to the inherent limitations of the one party system of governance.
Final word, don't talk up china's system until you've studied it.
Read the first sentence of my last post; I explicitly state my disdain for talking up the Chinese way of governance.
A little background on myself: I'm from Taiwan. My little nation has a deep and complex relationship with China so I feel somewhat comfortable speaking first-hand on the complexities of Chinese governance. In fact, my "country" is the polar opposite of the one party system in China. We are a representative democracy like the USA but we also share the cultural heritage of China pre-Communist revolution.
A two-party system of governance doesn't have a distinct advantage over censorship compared to a one party system of governance.
According to the University of Pretoria (South Africa), democratic countries don't have a distinct advantage over censorship despite the appearance of public scrutiny, etc.
http://www.ifla.org/files/assets/faife/publications/spotlights/2%20FAIFE_Dick_Oyieke_Bothma.pdf