More important than what you consider your guilty pleasure, what is your definition of one? We had this question come up on Elfster for a group of friends of mine and we all threw out definitions before answering.
My Definition: something you enjoy and indulge in without caring what anyone else thinks about it.
My Guilty Pleasure: Eating disgustingly large quantities of Four Cheese Cheez-Its or Oreos with Milk. I have no control when it comes to those and they make me so happy. Always a good day when I know those are waiting for me at home.