While I'm against the straight up quotas that were outlawed in Bakke vs. California and the point system that gave underrepresented minorities a huge advantage in Michigan, I think what Texas has is a good start.
Abigail Fisher was, by anyone's definition, a marginal if not downright mediocre student.
She received an 1220 (540V/680M/Writing not considered) on her SAT 
, had a 3.59 GPA, and was 82 in a high school class of 674. As someone who played a less-than-conventional instrument and was a legacy, Miss Fisher had a "hook," but it apparently wasn't enough to make up for her lackluster academic performance. I mean, really. My niece did better on her SATs when she took them in MIDDLE SCHOOL, and ol girl sued one of the best public schools in the country? Didn't her guidance counselor steer her from UT-Austin based on that abortion of an academic record?
In the future, will a non-legacy sue due to the fact that, at most schools, the median legacy GPA is lower than the overall?
That said, it's anybody's guess how this will turn out. The Supreme Court is a bit different from how it was in 2003.
Regarding sorority membership at LSU, I highly doubt it. If she sued a school for not getting in...imagine what she'd have been like at Recruitment!