When I first thought about rushing, I considered every GLO on campus - NPC, NPHC, and otherwise. I did a lot of research (mostly online) about nearly every sorority (and some co-ed greeks) on campus. It wasn't so much that I was making a choice among GLOs already at OU; I was evaluating what the sorority I was interested in bringing had to offer, compared against other, obviously successful organizations.
I was impressed not only with the niche that my sisterhood had the potential to fill, but also with the niche that many of the GLOs and BLGOs were already filling. I was particularly impressed by two organizations, one a GLO, and another a BGLO. I was really impressed by the seriousness with which the sisters/sorors took their committments, and just how unique they were and the fun they had within their chapters. It never crossed my mind to not to attempt rushing either one, simply because I wasn't white or black. I was impressed by the standards upheld by the ladies, and I felt it would be an honor and a challenge to be a part of their bond.
Obviously, I rushed/pledged/joined neither of those two organizations...A.S.K. grew too dear to me to contemplate anything else, after a while.