Location - international vs. United States / East Coast vs. West Coast / urban vs. Suburban
Housing - on campus vs. off campus / community vs. commuter school
Classes - case study vs. lecture / core classes vs. electives
Program Strengths - finance vs marketing vs entrepreneurship
Specific Concentrations - biotech vs international development vs technology, are there enough electives offered in your desired field?
Environment - competitive vs team oriented
Recruiters - know who comes to campus, especially if you have a few companies in mind that you want to work for
Alumni Network - find out how active the alumni community is in the area you hope to settle down and how many alumns there are in the field you hope to pursue
Clubs - if there is a specific one you want to join, look to see if the school has it
Semester Abroad - look into the different options each school offers if you are interested in participating
Significant Other Programs - some schools are more family friendly then others
Costs - some programs are better known for giving more financial aid then others, state schools are a cheaper alternative for in-state residents, also living costs are very different between New York City and Ann Arbor
Career Services - if you have a specific city you want to work in after graduation, how connected is the career services office to the companies in that location? What exactly are the services they provide?
There can be many other factors to look into but the key is to rank them all according to your preferences and see how each of your school selections fit the criteria.