Haha good question. I'm not too sure. I think it's kinda like college admissions - it all depends on who else applied and what they're looking for that time around. I know in general, boards want a "well rounded" person. I got turned down the first time I applied for a BDCP, but this time, I picked up a few extra officer positions in the clubs I'm in at school, got an internship relevant to my field (Civil Engineer Corps), volunteered a bit with Habitat for Humanity, and applied just for OCS, which ultimately saves the Navy money since they don't have to pay me til I report now - not sure how much that weighed in but I imagine it did. GPA stayed about the same, so I think it's showing a variety of interests and taking leadership roles in those interests. Also, if you can get additional recommendations and/or interviews (required for CEC), I think it shows that you are truly motivated, rather than just another job you're applying to.