Unofficial guide is my favorite, I have only bought the passporter once. UG has tons of info and is very detailed. I like the touring plans and rating system on everything. The only thing I dont like about it is the off site stuff b/c we don't step foot offsite when we go so I always have to skip that stuff, and I think man this book could be smaller if they would take that out, but I know some people find it useful.
Passporter has plenty of room for planning, but not as many details and ratings on the rides, hotels, dining. I don't plan on paper anymore and do everything electronically (computer then to smart phone) so its a waste for me.