I generally collect quite a few books (Hint: if you're willing to buy ones that are a year old and supplement the new information with sites like this, you can get "old" guidebooks really inexpensively. I buy a "new" one each year, then buy the others "old". That way I get the variety at a fraction of the cost.)
I like the Unofficial Guide for its tongue-in-cheek attitude and for it's touring plans. It really helps send home the message that planning is everything.
Rita Aero's Guidebook has friendlier color-coding and maps than the others, I think. Also a good website with great fans (like other places, hmmm.)
The Passporter is nice, the authors are really fans and know how to organize a good journal, but....Well, I'm a journal person myself so I tend to create my own journal with pockets for mementos and such and use that. I decorate it with stickers and have my own printouts for ressies, etc. I then incorporate another guidebook for the information because I like other guidebooks' information (see above). Still, if you don't want to create your own, and you like the idea of a guidebook serving as a journal/beginnings to a scrapbook, try this one.
Hope this helps
Always Stalking the Mouse,