Whatever school accepts them or the cheaper schools typically. Many people also sweat the ivy league schools, but they are not always towards the better end of the spectrum when it comes to a dental education.
If you go to predents.com, you can click on individual schools and see how many applied to each. It doesn't include all applicants, only those that went there to report their numbers, but by comparing the number of applicants, you can get a pretty good idea of where people want to go.