Alright, jumping into this Canada vs. Australia debate... it's tough because both are awesome, but it really depends on what you're looking for.
Job-wise, both have opportunities, but it depends on your field. Australia's mining sector is huge, while Canada's tech scene is booming, especially in places like Toronto and Vancouver. Cost of living can be high in both, especially in major cities. Sydney and Vancouver are notorious. But Canada might have slightly better healthcare access in some provinces, though Australia's system is pretty solid too. Education is top-notch in both countries.
Immigration-wise, both are generally welcoming, but policies change, so do your research on current requirements. Landscape? Australia has the Outback, unique wildlife, and amazing beaches. Canada has mountains, forests, and a ton of lakes. Climate... Australia's hotter and drier overall, while Canada has proper winters (which some love, some hate!).
Safety and political stability? Both are pretty safe and stable, honestly. Can't go too wrong there. I think it boils down to personal preference and what you value most. Weather? Job market? Specific lifestyle? Dig into those areas and see which one pulls you more.