UMich Econ vs USC Marshall

Hi guys! I was accepted into Marshall at USC and Econ at UMich and I’m having a difficult time choosing between the two. I’m originally from Southern California so I would prefer to go out of state for the experience because I’m a junior level transfer and only have two years left but everyone thinks I’m crazy to pass up the opportunity to be at b-school at USC while I’m in LSA at UMich. I 100% plan on going to grad school and pursing a MBA so what I’m wondering is if it really makes a difference if I go to UMich for Econ for undergrad or would it be better for me to do Bus Admin at Marshall and graduate from there and then attend grad school for a MBA? I’m also considering applying to Ross after my first year in LSA even though I would graduate later. Please help! Thanks!

Topic discussed before: http://talk.collegeconfidential.com/college-search-selection/1791134-umich-econ-vs-usc-marshall-business.html