The review below was posted on amazon.com by "princess jenny". I thought her review was very helpful. I personally got the 2009 Unofficial Guide, which comes out Aug 18, 2008 and the Complete guide........
Trying to figure out what Disney World guide to buy? So was I. After a little research, I learned there are three main books: This one, The Complete Guide to Walt Disney World 2008, and Birnbaum's Walt Disney World 2008 (Birnbaum's Walt Disney World). They are all pretty good, but there are big differences between them. I bought all three, including this new 2008 edition of the Unofficial Guide, and here are my thoughts on how they compare, at least in the categories that are important to me. I did this last year, too. Here are the results:
1) Easiest of use: The Complete Guide.
The Complete Guide has the best organization. Has a completely different look than the other books, with magazine-style articles and lots of color photos, which make the subject matter much more interesting and much easier to understand. The main chapters are color coded (Magic Kingdom is red, Epcot orange, etc.). Each attraction review is very easy to find, as each one starts on its own page. Second place: Birnbaum. It too has color-coded chapters.
2) Most fun to read. The Unofficial Guide and The Complete Guide.
The Complete Guide has an amazing number of little tidbits about the Disney attractions, so if you love Disney it's really fun to read. The Unofficial Guide has a lot of guests complaints about Disney, so if you're a Disney cynic it will make you laugh. Both have witty writers, and both made me laugh out loud.
3) Best information on attractions: The Complete Guide.
By a mile! It spends probably 10 times as much space on each attraction, offering up the story of each ride, some real good "Fun Finds" and all kinds of helpful specs that the other books ignore. Plus, as they say, a picture is worth a thousand words. Second place: Unofficial.
4) Best information about Universal Studios and Seaworld. The Unofficial Guide.
Hands down. The Birnbaum guide doesn't mention anything outside of Walt Disney World, and the Complete Guide only has hotel listings.
5) Best information on hotels, restaurants and shopping: Unofficial.
The other books have photos of every Disney resort, which Unofficial doesn't, but the Unofficial Guide just goes crazy with its listings, rating each resort nine ways to Sunday! For shopping, the best Disney info is in the Complete Guide, the best outside-Disney info is in Unofficial.
6) Best information on important misc. information, like getting from the airport to Disney: Unofficial.
Not even close. Has everything you ever wanted to know about taxis and limos and Disney's Magical Express and many other things.
7) Best maps, photographs and illustrations. The Complete Guide
Nothing comes close to the Complete Guide for photographs, but this is an area where the Birnbaum guide does have something special -- Mickey, Donald and all the Disney cartoon characters! They're included on many pages. Both Birnbaum and the Complete Guide have good maps. Unofficial has good line drawings of the interiors of hotel rooms.
So, which one's best? You know, I think you'd have to pick two: The Unofficial Guide and The Complete Guide. Unofficial is pretty dull to look at, but it is so thorough in its coverage about everything outside of Disney and offers so much "cynical" insight that it just can't be ignored, and it has the best hotel and restaurant info. The Complete Guide, on the other hand, is a joy to look at and read, and is just stunning in its amount of fun and useful information on Disney attractions. As for Birnbaum, I say skip it, and, if you've got children, instead buy the children's version, Birnbaum's Walt Disney World for Kids 2008 (Birnbaum's Walt Disney World for Kids By Kids). It's not much money, and that way you'll still get all the "Official Disneyness" of a Birnbaum book AND have something for your kids to look at.
Why, you may ask, did I only give this new Unofficial Guide three stars if I recommend it? Because I was so disappointed in it! Yes, it IS a first rate book, but I bought this 2008 edition because I had heard about all these changes coming to Disney World next year, like how Disney-MGM Studios is going to change to Disney's Hollywood Studios, and wanted to find out more about them. It doesn't mention any of it! I guess that's because how early the book must be put together. But I think if it says 2008 it ought to have the 2008 information. It's misleading.