Heather:
1) I liked the philosophy (but don't believe for a minute it's limited to DOs only)
2) I liked the DO's I met and worked with; they just seemed to enjoy their work a bit more at the time than some of the MD's I worked with did.
3) I was impressed with the schools I interviewed at; most of the DO schools were more focused on teaching undergraduate medical students.
3) Until you've K-crunched, you haven't lived.
good luck