If you are going in for an interview/campus visit, what questions should you be sure to ask?
Everyone else jump in on this, I didn't get to do campus visits when I applied so I'm only going on comments that my colleagues made about their visits and some guess work. A lot of questions are going to be the same ones you asked on the phone or via email--you'll just get a much better sense of the truth to the questions and you'll be able to get a feel for the place and a realistic sense of cost of living and such. All these questions really boil down to what you want and need out of a program.
Whatever else you do on the visit, steal a phone book! That way you'll be able to get a good idea of the kinds of restaurants/beauty parlours/yoga/whatevers are available, and to call apartments and utilities from afar if you decide to go that school.
If at all possible, schedule a visit when you can (in order of importance):
1--attend a workshop
2--talk to profs and students
3--see a reading or event
4--attend a lit class that
How often do you write? Do you get to write as often as you thought? About how many hours per week? Is it enough? (Pay attention to how harried the current students seem to feel about their writing versus work for teaching and taking other classes. Are you going to have enough time to write?)
How much time do your teaching/TA responsibilities take during a typical week? Do they take up more time than you expected? Do they get easier/harder as one goes through the program?
Where are the cool places to live? What is the reality of the cost of living? Where are the good bars?
What kind of community do the students have? Do students hang out with each other or go their separate ways?
What kinds of writing do the students do? Does it seem like they'll be able to help you and vice versa?
How much face time inside and outside of workshop will you get with each prof? Do they work with people even when they aren't leading the workshop? Will anyone be on sabbatical or MIA while you'll be there?
What kind of professional development does the program do beyond just learning to write and producing a thesis? What kinds of support does the program/profs give after the MFA or to get you into jobs? What kinds of things are available besides teaching frosh comp--working on the lit journal, teaching in the prisons, teaching in public schools?
Things to look for:
Walk through all the different offices of the English/Program department that you will deal with directly and get a sense of how the staff feels about students and how the English department feels about the Creative Writing program (if CW is housed in English). (Look for how easy it will be to navigate the bureaucracy of getting registered and such, and also how nice/mean the staff is--that's often indicative of how easy it will be to do the bureaucratic polka and also a way to take in the general atmosphere of the people you'll be working with. If the admin assistants hate all students or roll their eyes when you say Creative Writing, something's wrong.)
How do all the profs treat you and anyone you bring along (if you're married or fianced or just dragging mom along for moral support)? Do they seem genuinely interested in you both as a writer and as a person? Do they give suggestions of things to do, places to go, people to see?
How involved do profs seem to be with their current students? Do they hang around after class for a minute? Do they keep decent office hours and/or spend at least part of the week on campus when they aren't teaching? (or do they run to their cars and flee immediately after class?) If you go to a reading, are all the profs there? Do they talk to students? What's their involvement level both human and professional?
How much access do students get with all the professors?
Do the students seem to get along? Is there a community feel or do they all go their separate ways after workshop?
If you are a non-trad in some way, what is the makeup of the current student body? Will there be a few students like you or at least a few students you can hang out with? Are you going to feel comfortable hanging out with these people? Do you feel that they will respect you and your work, and vice versa? (it's one thing for an old fart to say "working with young people will keep me young" and another to be the only old fart in a class of younguns who ignore you because you're, well, old.)
And hey, be yourself on the campus visits--you aren't interviewing to get the job, you're interviewing them for the privilege of having you come to their campus next fall!