That's an easy question...I'm a plotter! I love creating character worksheets and detailed outlines with notes on the expected character moods and conflict in a scene. This level of detail is an anomaly in my very unorganized life. I think because I am distracted so easily and flit around like a butterfly from subject to subject (yes, I realize I'm describing an attention deficit issue!) that I need this organization to keep the story moving and assure an ending.
After I've created my outline I continue to work through the sequence of events to be sure my timeline makes sense and that I haven't left holes in the plot. Of course, all that plotting doesn't mean I won't have those issues but it does help me to minimize them.
With that said...I also allow my muse her freedom. I don't use whips and chains on myself (ouch!) to ensure I stick to the outline. If I have a new idea midway through the story (and it's a good one) I work it into the story and make the needed changes in the outline.
The idea of not working off an outline terrifies me! I look at a panster with envy and think how wonderful it would be to just let the story weave its own intricate web. If I did that...well, I can already see the mess I would create...victims screaming from the pages for justice, lead characters walking around blank pages wondering what happened to their character arc and why can't they find their true love or heal past hurts and finally, those secondary characters left floating in limbo. <writer screams loudly and runs from the computer>
Yes. I am a plotter. And I think that's what I'll stick with.
Have a good day everyone.