Hey, congratulations.
For my preferences, I put cottages (catered) as first preference, then John Oxley Village (catered), then Traditional Diggings (Self catered), then Macquarie Village (self catered).
I decided to try and get a catered package for the first year, so it's one less thing I have to worry about. Have you had a tour of the campus? Do you know if you want catered, semi-catered, or self catered acc.? Also, have you applied for it? If so, what did you pick?
Personally, for catered accommodation, I think the cottages are nicer than JOV, (Jov isn't too bad, they just seem a tiny bit older than the cottages, I think. And I also read on this site somewhere that apparently the walls are paper thin, and people know too much about their neighbours!), though that being said, there are good and bad points about each of them! ha ha
It is definitely hard too choose, I guess you just have to pick what you like best, and hope it all falls into place!