I’m considering attend Rose. Actually I love Rose very badly. According to my knowledge, there are many group projects in Rose. Students will get to know each other by doing projects together. And there is definitely sorority and fraternity in Rose. 
I have one question for @thshadow . What do you think of when you compare CS in Rose and WashU? I heard universities that base on research will give more chances for students to get cutting edge knowledge. Will that be a disadvantage to me, compare to students that go to research universities when I attend Rose?