Congrats on getting into amazing programs! Both consulting MBB powerhouses. Honestly, since you are looking to go into a lucrative industry, scholarship money should not be much of a factor here (but of course it would not hurt to ask for more money). Go were you feel the best fit and best chances of success in your career.
For entrepreneurship: MIT Sloan wins hands down. Sloan has a bigger/better startup ecosystem than Booth.
MIT's resources in Entrepreneurship are limitless: The world renowned Martin Trust Center that throws money at any startup through its doors, MIT's Sandbox, Cross-MIT resources, DE Lab, G-Lab, MIT's 100k Competition, VCs parked right on campus that focus all of their funds on MIT startups - are all hard to turn down.
Perhaps by quantifying MIT's resources it will surpass Booth's scholarship.
Congrats on getting into two amazing schools! Best of luck in your decision!