Wow I have to say I really like the Australian cover way more than the American one! It is beautiful!
I think I like the Australian one :)
Personally, I like the USA cover the best. But that's probably because I'm a chocoholic :)
The Australian one is beautiful but the American had the chocolate(I'm an addict too!) so maybe the American but both are lovely at the same time,I can't make up my mind:P