Calidenti-
I was in the same position as you last year, on the waiting list for Creighton. I spoke to Dr. Ayers about my chances of being accepted and/or what my rank was in the alt. list. He said that they do not rank applicants on the list, but rather review all of the waiting list applicants again once a spot opens. Last year, only 3 spots opened.
In my opinion, I think that there is a rank, so if you have really solid stats compared to the others waitlisted, there is a chance- although slight. Keep in mind that the class size is only about 84 students. Good luck!
Chipper