Shazbot,
First of all congrats on two great admits..honestly you'll do well wherever you choose. Last year I chose Darden with a half ride over Booth with no money so I had a similar cost differential between the schools as you.
I chose Darden for a variety of reasons that I would be happy to discuss with you but think Booth is an awesome program as well. I will say one thing: a generic poll is helpful but keep in mind that many people voting on here simply will click on the higher ranked school without giving much thought.
I am recruiting for investment banking but have many friends doing the consulting route. The big 3 each are interviewing about 40 candidates this year....how many offers that results in time will tell, but Darden is a core school for all of these firms and they each have been down for informational sessions, networking, dinners, and mock case workshops multiple times this fall.
From my experience, going into finance, I shared your concern that not going to a "finance factory" like Booth would limit my options. I have my interview schedule for next week and can say from my standpoint that hasn't been the case at all. I am fully confident I would have not received as many interviews going to Booth, for a variety of reasons I would love to discuss. I frankly was shocked by how well Darden is perceived by employers after I got here.
I lived in Chicago for 10 years before moving to Charlottesville so I can comment on both cities. Chicago is my favorite city in the world but there is also something to be said for going to school in a tight college town community. I also went to U of C for undergrad, and enjoyed it a lot, and can comment on the differences in the schools.
Bottom line, though, my best advice is unless it's HBS or Stanford, when choosing between two top 15 schools, go with the school you feel you fit best at and want to spend 2 years at. If money plays a roll due to personal circumstances, great, but for me it was a sweetener, not the be all and end all. Once you get a job, no one cares about your MBA program, and as long as the company you want to recruit at treats your school as a core school (meaning they have a target number of sports per year, they recruit on campus, etc...) and employs a critical mass of alumni, then you won't be limited by your choice. Booth has some advantages over Darden and Darden has some advantages over Booth.
I'd be happy to discuss if you would like. Send me a PM if you would like me to provide a bit more detail or would like to schedule a call.