Both Uni's offer Occupational Therapy, though having been in the Occ. Therapy program at UWS, I can tell you it wasn't very impressive. The course coordinator, when asked what exectly was Occ. Therapy, answered with, 'I don't really know how to describe it.' Plus, the work placements are all in Campbelltown, so unless you live close...
UWS has more alternative health courses, e.g. Naturopathy and Traditional Chinese Medicine. Usyd, seems more traditional, i.e. physio.
I'm guessing in those that are shared, employment prospects has a lot to do with where you've done your clinical placements, since they'll probably be your first port of call concerning job applications.