I'm big into motivations. My story ideas may come from a concept, but creating the story is all about the motivations.

I think for me it's b/c I'm into the psychology of characters. I want to get into their brains and figure out what makes them tick. So I approach everything with them from an inside out perspective. Yeah, there'll be plot and what have you to go along with that, but the outside stuff only serves to be funneled through the inside.