Sajan is right. Everyone is different and different taste. Even in state to state and city to city people have their preferances. Whatever the reason you felt good about australia might be reason for other people. I know some people who came from texas to california, nice job, good weather but they still prefered to go back to texas just because they have been living there for years and once u stick to one place for long time, no matter where u go, u still find ur original place much better. So it all come down to ur preferance. In general no other country can match usa as favorable destination but as i said different people, different choice.