I'm considering both, especially with this whole "job security" issue floating around. I would much rather go the AA route. Even if I have to go back and get a second bachelor's, more of my "good" credits will transfer with a degree in Biology or something similar than if I went to get a BSN. I would have to take a crap-load of nursing courses, work in the ICU for a year, and then apply to an anesthesia program... from what I understand. The AA route is much more time-efficient.