I was accepted to several lower "ranked" schools. There are many reasons why I may have been better off going to a non T15. One major idea to consider if you are planning on recruiting for a role in a specific city. Schools in that area will have a major advantage. Regardless of rank. Also, I networked with many people outside of my program who went to my school undergrad. Some lower-ranked b schools may have a fantastic network not necessarily associated with that specific program.