If I had to choose between these two universities, I would choose the University of New South Wales. Not because of this major itself, but because the popularity of the University of New South Wales has risen sharply in China in recent years, and the popularity of diplomas is even higher than that of the University of Sydney, just like that of the University of Melbourne.
As far as majors are concerned, I recommend West Sydney, whose translation major ranks first in Australia and is the earliest school in Australia to offer translation majors. The teachers are all NATTI. You can get the translation certificate directly after your graduation exam.