I preffed Pi Phi and Gamma Phi Beta.
We had (and still do) rush in January -- so it was snowing when we left pref, and the girls were outside in their white preference dresses holding candles in the dark with big white snowflakes in their hair -- they truly looked like angels!
But funny story -- I was "Pi Phi or Die" from day one. But when I left the pref party, they were running late and were desperate to get us out because the party had run late and they were fearing the fines...and they couldn't find my coat! So they threw some other active's coat at me, and after I left all I could think was "If I don't get a bid, it is going to be so humiliating to have to go back to try to get my coat!"