I'm doing Arts/Commerce @ Usyd. For me, the experience has been quite good. I was a humanities kind of person in High School so i wanted to choose a course that was broad in the skills you gain but also attractive to employers and arts/commerce seemed to fit perfectly.
I was also thinking about ANU beacuse of its reputation but it was too far away, but from i've heard ANU arts/com is really extensive, flexible and really good!
If you want something else that takes less time but similar to arts/com you should consider Commerce(Liberal Studies) at Usyd! This was my first pref but didn't get in!