Rush vs. recruitment: To me, it will always be rush. Recruitment just sounds too military... and I don't get why "rush" is such a bad term.
Rushee vs. potential new member: "Potential new member" is just too much of a mouthful. In conversation I say "rushee". Here on GC I use PNM because it's easier to type.
Pledge vs. new member: When I pledged my local, I was a pledge. When I joined AEPhi, we were just transitioning to "new member" - so I was a new member, but they hadn't reprinted the "pledge" manuals yet. *shrug* Honestly, I prefer "new member" to "pledge", but I didn't mind being called a pledge.
So... any bets on how long it will be before we have to find something else to call "pref parties" because "pref parties" implies that the sororities prefer certain women over others?
Oh and ariesrising... don't give NPC any ideas