Depends on who I am dating at the time
Just kidding. Seriously though, I would have to say TKE, Sigma Nu or Phi Kappa Psi (thats for you Russ!) based on their open motto. I looked at open mottos and purposes extensively when my local was looking to expand.
Or Kappa Alpha, because they helped a lost Yankee in Georgia (I got lost at Emory while a friend was meeting with her advisor). They managed to call me ma'am and me not get offended.