Extra crunchy, all day, everyday. Creamy has always grossed me out, like eating a giant spoonful of flavored butter.
I've recently, however, gotten into the natural peanut butters and now prefer those over anything else. Seeing as how I actually like peanuts themselves, the natural really has a great peanut taste. I think what I've found is the people that like peanuts the least like creamy the most, as it tastes the least like actual food and more like gruel for the tasteless and poor.