Australian medical schools should not be seen as a backup for US schools, most people who get into Australian schools usually have strong credentials. The country is not a dumping ground like the Caribbean and Iron Curtain medical schools. Australia is probably a decent choice if one wishes to practice in the US compared to a lot of other medical schools on the planet. Obviously its best to stay with US Allopathic and Osteopathic schools if the US is the goal country. I talked to a lot of PDs in the States, and they hold Australia in high regard.