I think you should get to see SORUSH after rush, LOL. That way if any of the sisters in the sororities you didn't pick are ever mean to you you can say "well you liked me enough last semester to give me a bid, beeyotch! "
I totally agree with Ivy's example about why PRUSH is better. There was a rushee story on here a couple years ago in which the rushee kept getting asked back to the top group on campus but she cut them before final rounds because she just didn't feel comfy with them - even though her friends told her she was crazy to do so. Not everyone has that kind of self-assurance - especially if you're rushing before you've even really started college and don't know a soul.