The Kaplan one is good and the typos are really entertaining. You'd think they'd get an editor for that...
Also, DO THE PRACTICE TEST THEY SEND YOU! They practically lift questions for that test. It's nuts. Make sure you know the info for all the ones you get wrong. I think if you knew the Kaplan book backwards and forwards, it would be more helpful than only sort of knowing it and reading an intro book. I got a 680, which isn't incredible, but it IS in the 78th percentile, and all l I did was go through the Kaplan book once all the way, then a bit more in the sections I didn't know as well, then take the practice test they send you. I think if you knew that book really well and studied the practice test provided by ETS, you'd be golden. Also I got 85th percentile or something like that on the social subscore, which was the stuff I actually LEARNED in college. I think learning in college helps. ;-) Oh and also I really didn't care much about this test, which would probably help most people (caring), but would probably just have given me an anxiety attack like for the regular GRE.
So that was long.