I highly recommend the University of Illinois at Urbana-Champaign. I guess, as an alum, I'm biased, but the program itself was very well rounded. I'm went through their MFA program, but the BFA's have the same opportunities as the grads, and show assignments are based on giving a student exposure to many disciplines. You will likely only ASM as a freshman, but, as you become acquainted with the Krannert Center and the staff, you will be assigned shows that fit your current skill level.
Classes in stage management, all theatrical disciples, as well as history are required for undergrads and grads. Undergrads have more hands-on practicum hours to fill as they learn a base for their craft, and grads have an opportunity for internships both in and outside the center, assistantships, and specialized independent study, ie current theatrical events, tour management, etc. All students have a weekly SM "homeroom" to get on the same page, and classes in SMing for opera, and learning about the Equity rule book are part of the curriculum.
The facilities are really great; you'll get a chance to work in 4 spaces, and work on opera, theatre, and dance. The Center sometimes commissions new work which is another great hands on learning opportunity, which has allowed some students to have jobs after graduation. With the presented events, there is an opportunity for work in the events office for the touring events, and sometimes the SM's for the touring events are invited for Q and A's as they are available.
All in all, I think the MFA program is growing, and worth looking into. The BFA program is right for students who already know what SMing is, and are ready to completely throw themselves into it. Often we would get undergrads who thought they knew they wanted to SM, but really didn't know what all it entailed. For these students I might suggest they consider a BA program.
I went the BA / MFA route, and it was totally right for me. It mean I got to tap dance in college
One suggestion: I would look very carefully into what KIND of productions the school you're interested in puts on. When I was doing the whole URTA / checking out grad schools thing, I eliminated some schools from my list because they didn't so musical theatre, or opera, or new work, or whatever... Eventually the U of I rose to the top for me for lots of reasons, but one really important one was the opportunity to work in so many disciplines, and be around the tours coming in. The only draw back about the program is its location, in that there is not a direct connection to a major theatre city.
PM me if you have more questions or want more info.
I've also heard good things about the DePaul program.