[MTSUGURL]

"Personally, I am a little confused about what seems to be a lack of real national identity for the NPC/IFC orgs, but perhaps this is just because not being in one of those orgs there is a lot that I don't see."

I'm not sure that this is a fair statement.
I'm not a member of an NPC/IFC organization, so I, like you, am an outsider. However, I've known (fairly well) enough chapters of the same sororities and fraternities on different campuses through either family members or close friends to see that while every chapter isn't alike, (i.e. ABC isn't the "smart" chapter on every campus), all the orgs that I've seen seem to have a strong national identity.

My family is spread out around the country. We don't all have the same personality, intelligence or looks but we all share a history and things that identify us as a family.

Comparing NPC, IFC, and NPHC is like comparing apples to oranges and grapes. Can't be done.