You will likely have to take the MCAT. Temple used to accept the DAT, but I believe they have moved away from this. Since you are already in Dental School, there could maybe be some exception, but I really am not sure and you would likely need to check with Temple. There are ~1000 applicants and ~600 seats for the 9 schools. It looks like the applicant number continues to rise. There isn't really a top school overall due to numerous factors needed to take into account. However, the school I would say has the best academics based on their board pass rate would be Midwestern, yet their clinical is not quite as busy as other schools. That's not to say you wouldn't get a good clinical education. It's thing's like this that I believe doesn't set a clear cut answer as to any school being the "best" more so than it is just finding one that suits what you are looking for. Here's an information book that should answer most of your questions on stats and other questions you may have on the process.
http://www.aacpm.org/html/careerzone/pdfs/2015 CIB.pdf
