<p>I took the GRE in November (750 verbal, 600 quantitative, 6 writing- I'm not a maths person), and, as a nervous international applicant, went mad on GRE prep books (so much cheaper on amazon.com than what I'd pay in Australia, too, even including express shipping!)</p>
<p>DON'T waste your time/ money on the DVD, if it's the 2009 edition (the one I got). It's just a video with study tips, and they're not very good (mostly common sense, and mostly duplicated in the book). Besides, it's horribly cheesy (imagine a kindergarten teacher telling her charges, with the trademark kindergarten-teacher enthusiasm, that they're going to be "CRACKING the GRE!!!!" over and over...) and quite painful to watch.</p>
<p>In terms of other content, I'd say the Princeton one is middling difficulty between Barron's (harder, and I feel prepared me better), and Kaplan (way too easy for my liking, at least in the verbal section). The Princeton preparation for the analytical writing section is very good, and the verbal and quantitative setup was fair. The only beef I'd have is that they're a bit short on practice questions (Kaplan was the best for that), and that the book is very cheaply made. </p>
<p>The other nice feature is that near the front of the book is an explanation of scores, and what percentiles they represent (in fact, after taking the GRE, I called my mum and asked her to find the Princeton Review and look up my scores!). The table was pretty accurate (within 1%) on my scores.</p>
<p>If I had my time again, I'd probably opt for either the Princeton or the Kaplan Premier Program. The latter has easier questions than I found in the actual exam (Princeton was about right, and Barron's was too challenging- which was probably a good thing for preparation), because they had plenty of practice questions and it was nicely set out (Barron's didn't have enough, I found, and the book's setting out was horrible). I suppose it depends on what you want. If I had more time to prepare (I stupidly decided to start studying properly after I finished my semester's work, which gave me all of two weeks!), I'd consider going for Barron's, though. I could get used to the format, and being pushed harder is worth it (and the format of the GRE itself is Windows 3.1ish, so you have to get used to a crappy layout). Also, their CD is great- you do the test over and over (the questions repeat, but it's never the same test), and they give you an approximate score for the verbal and quantitative sections (which was about right or slightly below what I ended up getting)</p>