If you're 1st year and moving on campus because you have had to move for uni, then you should be fine getting a place at one of the colleges.
Barahineban:
A nice place to stay if you like either rooming with someone or living by yourself away from the 'hussle and bussle' of the other colleges. Id say its mostly couples, international students and 3rd/4th year students living here. Nice rooms and id say a higher quality overall compared to the others (its a newer complex). I was thinking about moving there this year, although it is pretty pricey if you have a room to yourself. Will need to cook/provide your own food.
Rating: 7/10
International House:
Consists of approximately 50% Aussies and 50% Internationals from all countries from the US to Japan. Majority of 'blocks' have 3 floors, with 10 people on each floor, split into two sections by the kitchen and lounge areas. So you will get to know the 5 you are with really well, and the other 5 pretty well. There are courtyards and paths which seperate the blocks, and a few blocks with non-catered apartments for the older people and those who want to get away from noise. These guys like to party like Teds, but I think are a little more tamer (sp?) than Teds.
Rating: 9/10
Edwards Hall (TEDS):
If you're a party animal and like interracting with people, then this is the place for you. A lot of people in this college, ive got a few friends here, and they like it. The main areas of Teds are Fully-Catered, although there are non-catered apartments also. Imo this is the most popular college for 1st years. My friends say the food is pretty ordinary, but ive seen it and its not
too bad, they are just whingers.
Rating: 8/10
Evatts House:
Consist of non-catered apartments, so you'll need to provide/cook your own food. Similar to International House it a lot of ways, although not as good
(NB: Biased opinion). Not too sure what else to say about Evatt, it would suit those who are social, but not party animals like those at Teds. More space and trees between the 'blocks'.
Rating: 6/10