great social life (don’t listen to ppl who say otherwise, unsw is all weird engo nerds), mostly good teaching, great atmosphere, great international reputation, cool looking quad, no trimesters, much more flexible single degrees, more major options (eg comp sci as a science major), much more able to take double majors (quicker than double degrees) and I could go on
the only thing I’d really prefer unsw for is plain engineering and I feel like even that depends on the type of engineering, for some types usyd isn’t actually too bad if not better