If you want to become a practising lawyer, study law at your most preferred uni out of those that give you a law offer. Generally, UTS and Macq (and to a greater extent, WSU, UoW, UoN and UNE) are a bit more generous with their offers than UNSW and USyd.
It’s best to study what you want, wherever you can, rather than studying an alternate degree with the intent of doing an internal transfer into law or a postgrad JD. These alternate routes are not guaranteed, likely to take longer, and may be much more costly (JD can be full fee) over going straight into law in a different “less prestigious” uni.