Definitely a plotter... almost to a fault. I'll spend ages brainstorming and daydreaming and almost no time writing! Even then, as I start writing, the plotting machine is still running in the background and tossing out what-ifs and new ideas and before I know it, I have to start all over because the story has changed drastically since I began, which requires a little more brainstorming and planning and plotting and then I start writing, but still some what ifs slip through the cracks and a new idea comes in from a comment in a movie or a scene in another book, and I have to change once scene, which means I have to go back and rework...

Yeah... it's bad.