Alpha Tau Omega.
They're dry, they have the highest GPA, and now they're going green.
http://media.www.cw.ua.edu/media/sto...-3138734.shtml
The daughter, a recent UA grad, claims they're all nerds. If so, good for them. I know several of their members and they are all fine young men from steady families.
BUT...you can still be a sober, upright member of most any other fraternity. Most of the crap you hear about fraternities is just that - crap.