I agree polarpi

That is what I thought honeychile was trying to say too.
When I first thought of rushing for ADPi, I really wanted to because of an ADPi I met my first semester here. I didn't necessarily join because of her, but I did start going to recruitment events because I thought "if her sisters are as awesome as her, I would definitely like to get to know them". During the recruitment events I met so many awesome people, and *that* is what made me want to be an ADPi more than anything

She ended up not being my diamond sister, but it didn't bother me, because we still have a great friendship
ETA: As far as bigs/littles go, I don't see why they feel the need to be switching. Just because you are a big/little does not mean that you need to automatically become instant best friends... you'll still be sisters whether or not you have every single thing in common