Hihi!
Well, I'll post my reasons for attending Michigan below.
1) Univ. of Michigan (for my department) is ranked #1 in the country, and has been every year since the rankings started. There are many benefits to this, such as a 100% employment ratio every year (every graduate has a job upon completion of the program). That being said, finding work afterwards won't be a problem at all.
Rankings in public health might matter depending on what field you're in. If you're aiming for Health Education/Behavioral Science, rankings might not matter so much. However, when it comes to healthcare administration, rankings matter a lot - it has a lot to do with what kind of opportunities that will be given to you, how strong the alumni network is, etc. In this respect, it's similar to getting an MBA (and it is) - getting an MBA from a no-name school usually ends up being practically worthless.
2) The students all seemed very happy. I visited the school twice, once for a required interview in Janurary and again last week for apartment hunting. Not one person (faculty, staff or student) had anything bad to say about the school whatsoever. They all genuinely liked the school and their experiences there. The quality of life seemed to be great.
3) The alumni network - UMich has a huge network of alumni which is very strong and is geared towards getting you connected in your field. I talked to 4 students during my interview there who said they were hired by other UMich alums on the sole basis that they were Michigan students. They might have only met once, but after hearing they were attending Michigan, they were automatically hired. Once you graduate you become part of the "Michigan Mafia" which opens many doors for you down the road.
4) The professors and staff were very friendly, helpful and laidback. They seemed genuinely concerned about their students and their experiences while attending the program. Many of them joked and had a sense of humor (which I found drastically lacking at other schools where the professors were a bunch of uptight crotchity old men).
5) Money - they gave a tuition break. That says enough.
I hope this helps!