I think UVA may have been much less public interest-y, but they are trying to change. Which is probably why they like me, seeing as I lived on a commune and did an organic farm apprenticeship before applying to law school. They also have a dedicated PI career office with its own support staff--versus Penn who just has a PI counselor in the regular office and a pro bono office for getting volunteer while you're a student--a recently ramped up LRAP, and they seem to be sprouting new PI orgs and associations left and right.
That said, if UCLA had UVA's LRAP; I'd be there in a flash. I love the students there, they are so down to earth. And UVA doesn't have the kind of programmatic support for guiding a new PI person who's not quite sure of herself. UCLA practically feeds and burps you. In a nice way.
I keep hearing bad things about the quality of teaching and student meanness at GULC, which makes me wonder about them. I honestly expect UVA will be a better learning environment in class, but GULC would offer more pro bono options outside it.
Keep in mind that the top public interest groups/firms are also pretty snobby. Any top school should do you well with these groups. The fact that UVa will cover your ass much better than UCLA or the other options thus becomes pretty vital.
Who is snobby? I didn't imagine legal aid orgs would be super full of themselves. Are we talking about the ACLU?