No one here is really going to be able to answer your question because no one has taken it. I think the best course of action would be to get access to some official material from the AAMC and, unfortunately, hitch a ride on test prep organizations that are getting some of that inside information.
I didn't think Kaplan was necessarily as mentally engaging for me as it ought to have been, but they had some pretty good insight into the exam that I thought helped me. They also have some bad advice, but not outside of reason that you can't figure out it doesn't work for you (e.g. they wanted us to 'map' passages, which I didn't have time for so I simply read them).