based on 1 student ratings
I chose ANU and CBE mainly because of the rankings and how much I liked the campus. My admission counselor recommended me ANU after seeing the success of one of the clients he had sent to ANU. I did apply to some other universities in the G8 category but ANU was always my first preference. Although it being expensive for international students I reckon it is going to be worth it.
All of them are highly qualified, competent and well accredited but it still really is subject matter to the course you're taking and if you're attending lectures or seeing them online.