How about true home residency programs that openly favor students from said school? How about research opportunities that lead to actual publications in major medical and field specific journals? Schools that provide significant discounts to board resources like UWorld, USMLE-Rx, Sketchy, etc, and that have all of this and still have reasonable tuition. Schools with faculty in almost every specialty that act as mentors for students interested in said specialty. How about schools that encourage their students to take USMLE? In the last year alone my school has medical student publications in journals such as: Journal of Bone and Joint Surgery (#1 ortho journal), JAMA (big JAMA), JAMA Derm, JAMA Oto, British Journal of Anaesthesia, and that is literally barely scratching the surface of the research output. My school is not the only one that has access to good research, but a lot of DO schools don't.
Not all DO schools are created equal. Yes in the match a DO is a DO, but some schools can make building a high quality residency application easier on their students and anyone who believes otherwise hasn't seen the crapfest that exists at some DO schools.
You had better believe that someone who wants ortho and goes to MSU where they have ortho residencies, ortho faculty, and access to ortho research will have a much better time building an ortho app than someone at CUSOM or even KCU. It has nothing to do with "prestige."