I think it's a personal thing. I just don't like PBL. I'd rather learn with a lecture and a textbook and notes. Also, I've heard too many people complain about PBL sessions -- the gunners dominate, people talk about stuff that isn't important, and in the end you don't learn enough. But I think that really depends on how well the school implements the curriculum. It could be done much better if it's well-guided by a professor/leader. I sort of wish schools wouldn't jump on the PBL bandwagon so much. That's why I appreciate that Drexel offers 2 options, because some people love PBL and others hate it. I also think that students in a totally PBL curriculum may not learn everything they need to, and this may be reflected in their board scores. (I'm sure that's not true of all of these students, and it's just my impression. I know I wouldn't learn enough with total PBL!) I wouldn't mind having some PBL, just not mostly. I think a lot of schools now do a mixture.
And finally, the biggest problem with PBL from my standpoint is that it requires you to be in class all the time. Now some people will jump on me for this -- why go to med school and not go to class? But there are many reasons why somebody might prefer to be able to skip class, or to study outside of class with the help of taped lectures or whatever. Not to mention if you HAVE to miss class it's nice to know that your attendance wasn't required and you have another way to get the info (distrubuted notes, books, recorded lectures, etc.).
I do think they have a nice community/comprehensive health focus or attitude or whatever, and the location is gorgeous.
