A couple words. First, there are several threads that go into detail about this topic which you can find if you search the forum. They are long and usually give the pros and cons of both methods, leading one to believe that they are equal as long as you work hard. However, since I am an MCAT instructor for TPR I will give you my abbreviated pitch. TPR is better because you can take all of the materials home with you instead of having to go to a test bank, you get 1 on 1 help with your instructor if you need it (unlimited)rather than a video tape, and the TPR Diags are better (IMHO) than the Kaplan materials, and BTW the 'P' in TPR stands for Princeton, not Peterson.