Room Selection Process

<p>Just wondering how the room selection process works and what the odds of getting the room you want actually are, haha!
I am currently a transfer freshman, so I've never done room selection before, and I want to room with a friend next year.
What are the odds of me actually getting a good registration time, considering I want to move to a different room but stay within the same quad?
I know there is a list of criteria that go along with when appointment dates/times are given, but what are those criteria exactly? And what are my chances?
Thanks a lot in advance!</p>