Kids, don't try this at home.
I used the Examkrackers books. I started out back in May, with the intention of following their recommended protocol: read the chapter through once; read it again while taking notes, highlighting, and doing the in-chapter questions; take the end-of-chapter exam; and read the chapter through a third time. I planned to do one lecture per day, leaving me with plenty of time closer to the exam to review and fill in my knowledge from textbooks. I also planned to look up each of the listed MCAT topics from the guide on the AAMC website in my textbooks and read about them., which is something that was recommended to me as being very important since AAMC changes the test content all the time and no prep company is perfect. I also bought Examkrackers' 101 Passages in Verbal Reasoning.
I didn't get very far, though. I procrastinated like crazy, and with probably about 2 weeks left to exam time, had done only about half the lectures. I gave up on Examkrackers' advice, and just started rushing through the lectures while making flashcards, doing the in-chapter questions, doing the end-of-chapter exam, and then moving right on. I never got around to reading my textbooks at all. Sometime on Tuesday or Wednesday before the exam, I finished, leaving me time to take the Examkracker's practice test that comes with the books, and 2 AAMC practice tests. (Yes, I took one on Friday, which is universally not recommended.) I never touched the 101 Passages in Verbal Reasoning, nor did I ever practice writing samples, nor did I ever look at the other 3 AAMC practice tests I bought. I did listen to Audo Osmosis while driving and riding the train, but I didn't get all the way through its organic lectures and there were a few bad tracks on the physics and bio CDs (I had copies), so I didn't listen to the whole thing.
My scores: 14V, 13P, 13B, writing S. 40S.
Moral of the story: do as I say, not as I do. I am certain that the plan I originally intended to follow would work very well for many people; I'm also certain that what I actually did would not work at all for anyone, except George in the episode of Seinfeld where he discovers that doing the exact opposite of what seems right makes things go great for him, which is how I feel after my MCAT experience.