AP Spanish: Barron's or Not?

<p>I'm looking for a book that will help me better prepare for the AP Spanish exam. My teacher doesn't really teach, so I was wondering if Barron's is the way to go. I've read several threads about AP Spanish on this forum, and some people seem to be for the Barron's book, while others are against it. Or should I buy the REA book like the consolidated AP Book thread suggests?</p>