As a former classmate of Future L&D Nurse, I would have to disagree slightly about UNM's acceptance criteria.
They do evaluate GPA and Letters of Rec. However, I think they are more focused on "diversity" than on previous healthcare experience. I, for example, got in on my first try with no previous healthcare experience whatsoever. My background is in business administration, and I hold a prior BA in Creative Writing. I was accepted with a 3.6gpa and excellent letters of rec. Not exactly what you would call the ideal accelerated BSN candidate, but I added to the "diversity" of the class.
However, as Future L&D Nurse said, UNM does not have a waitlist. You either get in or you don't, and if you don't, you can reapply. I understand they are starting 3 groups (classes) per year at this point.
I also want to point out that you should evaluate a program based on what you expect your career path in nursing to be. UNM's program is heavily geared toward graduating future "nurse leaders" (i.e.: managers), so their curriculum is highly theory-based, with a lot of leadership classes. I understand CNM's program is more traditional, with emphasis on basic nursing skills. Many UNM graduates (myself included) feel shortchanged, as far as practical nursing skill development goes.
Good luck to you, whichever school you choose!