Cost of Education
Both countries have similar tuition ranges. Canada averages CAD 20,000 to 35,000 per year while Australia averages AUD 20,000 to 45,000 per year.
Post-Study Work Rights
Canada offers the Post-Graduate Work Permit for up to 3 years. Australia offers the Temporary Graduate visa for 2 to 4 years.
Verdict
If your goal is PR, Canada may be slightly easier. Both are great choices!