I completely agree with you. The school doesn't matter; you do. Everybody in dental school is basically equal when it comes to smarts. This isn't undergrad, where most of us are a lot smarter than everyone else. Dental school goes from being smart to effort. The students that put in the most effort, get the best grades; no matter what school they go to. There is a guy in my class that is number 1 in our class, 4.0 gpa. He would have the same grade whether he was Harvard, Temple, or Howard. He has that grade because he spends every waking hour studying the material.
I think the choice between Case and Temple is easy. Temple has a better clinic, and didactically, you reap what you sow. Philadelphia is 1000 times better than Cleveland. Cleveland is a dump. You are 2 hours from DC or NYC. 1.5 hours from the beach. Lifestyle is much better in Philly. Clinic is much better than Case. Didactics are what you want them to be.
I really don't see anything that Case has that is exponentially better than Temple, but Temple has many things that blow Case out of the water.