BC CSOM vs. Umich LSA

With only about a month left for me to decide, I've narrowed down my list of schools down to two: BC's CSOM and Umich's LSA (denied from Ross). I'm shooting for IB after college, and was wondering which school would help me break in as best as possible. I've visited both schools and thoroughly liked both of them equally, so it comes down to the strength of the program and the potential for me to succeed after college. I'm wondering whether the semi-target b-school route through BC would be favorable compared to the non-b-school target route through Umich. Any and all advice is appreciated.