Smooth! Every time I have crunchy peanut butter I think "Gah what was that! Oh, a piece of peanut. Wait! What was that? A bug? A bit of gravel? The treasure of the Sierra Madre? Oh, another piece of peanut." Apparently crunchy is too stressful for me. I pick a texture and stick with it! Chunky is like you couldn't decide whether to have peanuts or peanut butter.