What will China do?
I think China is at least as bad as the EU: always looking to stimulate. China's economy is so rigged that it stimulates malinvestment everywhere. Look at the Chinese property bubble - it's soaking up demand for materials for stuff that shouldn't even be built.
It's my belief that the Chinese economic miracle is nothing but an illusion. Like the EU, we can be pretty sure that things will end badly. What we don't know is "when". Without knowing "when", it's very hard to predict the collapse of commodity prices. We need the benefit of hindsight - where everything is obvious in retrospect ;)