I went down this exact road a while back.
First of all, if you have no healthcare experience, then how do you know that this is what you want? Surely you have some shadowing or something else? Just saying, is all. It's harder to get dental experience than med experience during nights and weekends, but you should have something before starting a program.
Anyway, the community college and strength of school topics are ones that will never truly be settled. We both know that hard schools have easy profs and easy schools have hard profs. I say that going to a CC is incredibly lame if you went to a great undergrad due to perceived difficulty, but that there isn't much of difference between which 4-year school you do a post-bacc at. Therefore, the major issues are location (Philly only, right?) and...
Expense. Med students have linkage programs, which are great b/c they save you money long-term. That is one justification for paying a high tuition, but it doesn't apply to us. The other justification is small class size/advising/rep, which I don't think is that important anyway, and which many expensive post-baccs don't even have/aren't good at. So it doesn't make sense to shell out 25k in tuition when plenty of schools have the same thing for much less. Drexel costs more than Penn and Temple by a good margin, so I didn't even consider the school. At Penn, you'll be taking classes through CGS, which is about as cheap as Temple (9k/year, not bad). So with these two, it comes down to where you feel most comfortable at. I didn't like Temple at all. Penn seemed fine, but I got rejected. 🙁
It's advantageous to go to a cheaper school, but an 'easier' school? Depends on how you feel about the easier school.