My personal theory was that I couldn't judge anything about a school until I visited it and saw with my own eyes. If you live nearby, take a tour of the school. If not, wait until your interview before you decide which schools are for you.
I started my application process not having any #1 choice. They were all just school names. It wasn't until I visited each of the schools I applied to at interviews until I saw what they were like and which I though I would fit into the best.
That being said, my personal opinion of NYU is that since it has such a large class, there can be a lot of variation in the education you get there. As with any school, you can make the best education out of the worst situations merely by your personal motivation to succeed and if you strive for excellence.
At a school like NYU, it may be easy to skate by and not learn a whole lot if you don't put a lot of effort into it. This is also true of many schools.
You need to be self-motivated to get what you want to get out of any dental school.