I am active military, starting to pursue an MBA online, but have no idea on how to decide between several schools. Due to my budget, I am considering the following three schools:

Ball State University
Oklahoma State University
Mississippi State University

From the research I have done, each of the three is rated above the others on different lists. With no experience with business schools or MBAs, I am unsure as to how to decide between these programs. Does anyone have any insight?

With this level of school, there's no clear order. They all have AACSB accreditation, which means you are assured that you'll get a decent education.

If I were you I'd look closely at the curriculum and faculty and see what appeals to you. The Mississippi State program looks like it offers less flexibility in terms of concentrations than the others.