It really depends what you want to study.
I studied a bachelors at the University of Technology Sydney and a bachelors and a masters at the University of Sydney.
Macquarie University is a long way out of town. On public transport it probably takes 45minutes to an hour every morning if you are living in the city. Sydney is a spread out place.
Sydney University has the most prestigious name and attracts a lot of good academics, they are particularly good at the arts. They are disorganised as all hell!
University of Technology is excellent for science, computers and business. They are incredibly organised.
My advised would be refine what you want to get out of your study and pick the university according to that. Sure some universities have a better "campus life" than others but to be honest most of the fun happens outside university.
Oh and if you say school in Australia it means elementary or high school, not university, just giving you a heads up.
Message me if you have questions