Tough choice. I liked Marquettes facilities, faculty & students, and curriculum better. I would hate SGL. That being said, UIC has a good alumni network, good residency opportunities, and it's pretty hard to beat Chicago.
I would go with Marquette.
I have my reservations about SGL as well. Marquette’s curriculum is also a tad more traditional. I also attended Marquette for undergrad and am much more familiar with The curriculum.