Wow, NguyenDDS! If you got into all of those schools this cycle, you did amazing and congrats!!! I know you've worked hard 🙂 as I've read your posts for quite a while now.
My opinion-
I feel almost bad for the all the negative things that I am about to say but I base things sometimes by my gut feeling.
In short, if it were me, I would choose between UMich or UNLV (but I do warn you that I don't know much about UMich).
As for why I wouldn't pick the others:
MWU-AZ = I interviewed at MWU-AZ last cycle-- and while they have nice facilities and campus, I got a bad vibe and was quite turned off by the school and some of the faculty during interview day. I also didn't like a lot of chain restaurants within 5-10 min radius (not much personality), and they don't seem to be too environmental-friendly (no recycling bins on campus... this is so different from my undergrad which had recycling bins next to every trash can... and they have the perfect location for solar panels in the middle of the school, but no solar panels either... I've considered being an environmental major at one point in my undergrad so this may be why I'm a bit of a tree hugger. Ended up majoring in biochem but still took environmental classes.) I felt that I wouldn't be happy there and decided not to apply to MWU-AZ this year. To each his own applies here since I'm sure MWU-AZ is a good fit for some people.
NYU = I think NYU has a good name, and I seem to be reading that they have good clinical experience, but the biggest things that I have against NYU is: expensive tuition, NYC may be an interesting place to live in but very expensive living costs, large class size, perhaps crazy exam schedules, very far away from home, and I also worry about how well I will tolerate cold seasons/snow since my body easily shivers. Snow probably wouldn't be a problem for you since you're from TX and you're used to it, but weather is a very top criteria for me as I have even declined an interview before from a school in a colder state last cycle. This cycle, I went to cold states regardless, but I sometimes worry that I wouldn't be able to concentrate well if I'm worried about how cold I am or because I'm shivering! I would still go to a cold state if it were a really, really, good school though or if the pros outweigh the cons.
Roseman = I've heard a lot of good things about the campus- nice facilities, good learning environment, working in teams, lecture rooms are nice. South Jordan is also a nice city to live in. I've heard it's in the richer side of Utah? I think the campus and curriculum by itself, I probably would like the school and be happy there. However, for me, I withdrew my interview invitation from Roseman because 1) it's a relatively new school, not much reputation yet 2) Your doctoral degree lasts forever... To me, Roseman doesn't seem as professional of a name for a school, and patients may wonder where the school even is. Roseman used to be University of South Nevada but it got changed I think. 3) One interesting thing that I've heard at another interview, a dental student told me he got into Roseman before he got into the current school he was going to, he said something about the issue that since Roseman is in a really nice/richer area, what would the patient pool be like? Would the school have a hard time getting patients since they could afford better treatment from actual dentists already? 4) It snows :X enough said (cold weather situation again) and it's a little farther away from home for me.
UNLV - you've already seen my opinions from previous threads.
UMich - I don't know much about the school. I didn't apply to UMich (I think because of the sociology pre-req and specific LOR?), but UMich has a nice name and I've heard it's a good school/nice campus. It's a good place if you want an undergrad feel to it and if you like sports. However, cons - 1) I've heard from a UDM student that UMich sometimes pays its patients(?????) since it's also in a nicer area and may have trouble getting patients. NO CLUE if this is true, but this is what someone told me. 2) I assume that there might be more of a competitive vibe at the school. I want to think there might be a good amount of gunners here 😛 3) cold state