differences

That's because there are none. Though certain house would like you to think there are. However, I promise you, if you walk into a party or meet a girl in class without any letters on, you wouldn't be able to tell which one of these houses she belonged to.

I'd also say, that for any type of person, there are probably at least a few chapters in which a girl can find her people and feel comfortable. That also means there is overlap between houses. A group of girls could fit in at Kappa, GPhi, and APhi. Or a different group be more GPhi, AXO, DG, or PiPhi, AXO, ChiO. Or even (don't get pissed off, interwebs) DG, TriDelta and Theta. Similar personality/interests groups would be hard to tell apart from one house to the next. This also means, in most any chapter, you should be able to find a group of sisters that make you feel at home.