and this is New South Wales biased, and, if you were to fall nicely into the marketing firms' demographics...
The blokey bloke working-class-man types would all drink Victoria Bitter. (aka VB, Vitamin B, a can of green....)
The high flying suit-and-tie corporate city workers would all drink Crown Lager (aka Crownies)
Everybody in between would drink Tooheys New (aka Give That Man A...)
The most expensive beer in Australia currently is Duff beer. Only a small amount of it was made before Fox or whoever had big lawyers jump up and down on the company that produced it. It now goes for, oh ... (sold.com.au is my friend)... $75 - $120 for an unopened can.