The problem is that no Southern school with deferred rush really has a big house. UVA's are really small, but even SMU and Vandy don't seem to house more than 30-50 at the most. The only schools that I can think of with houses big enough to house 90 are definitely not Southern or don't have deferred rush (Oklahoma, Mizzou, Indiana, LSU, Kansas, etc.). So the housing thing is throwing me for a bit of a loop.
I still think it's SMU though.
On another note, I think one of the things that hurts her credibility in this book is that, by not being Greek and doing all the research in a year's time, she doesn't really understand how common these things she's reporting on are. Like I said, I thought she handled some topics fairly well -- but when she tries to make it sound like "Naked Parties" are as common as intra-sorority squabbling and drama, the credibility flies out the window.