We use/used "The Bride's Essential Wedding Planner Deluxe Edition" I bought it on amazon for about $15.
It was really helpful for guest list creating, though I made sure to photocopy the guest pages because there wasn't enough for our less than 100 invites. It's spiral bound, which I like but the spiral came off the back. Looking back, we realized we're not really "hard book" types when it comes to planning, but I am really impressed with all the space it has for organizing and comparing options for each aspect of the wedding and all the tips and timelines. I think it might have had too many - which is probably perfect for some planners.
I got the little purple one by uh...Weddings or something. Barnes and Noble, it fit in my purse, took it everywhere with me!
Someone gifted me this wedding binder and in all honesty I have never used it once. I just have a folder that my venue gave me with all their information (menus, add-ons, contract, receipts, etc) and I stuff any paperwork in there I get from other vendors. I also keep a detailed excel list with things I need to buy and guest information.
If I bought my own though I'd probably get Martha Stewart's.