Feel free to answer and adapt to your own tastes if you will. Here are some guilty pleasures of mine:
Guilty Food: Either Rice Krispies Treats or Pretzel Nachos.
Guilty Read: People Magazine -- oh what a trashy and delectable time-waster!
Guilty Movie: Joe vs. The Volcano -- "Daddy said not to tell me who you are or why he hired you -- that I cannot be trusted. I'm a flibberty-jibbet."
Guilty Video Game: Saddle Up with Pippa Funnell -- yes, I know the target audience is 8-10 year old girls. Shutty.
Guilty Music Group or Singer: ABBA -- I think that this is the guilty group for a lot of people, and we should just all come out of the disco closet and proclaim the joy of ABBA to the world without any guilt. You go first.
Guilty TV Show: Hatching, Matching and Dispatching on CBC -- appallingly addictive!
Guilty Admiration: Ann Coulter -- she cracks me up, but I feel dirty afterward.
Guilt can be constructive if it is good guilt. That's the guilt that convicts your heart of your wrong action or belief, and then paves the road to change. The above are not such guilts (though I've certainly had the other kind). These are just silly, little things that lie under my smooth veneer of culture and erudition.
(Okay, I know, what culture and erudition? Under my pretensions to culture and erudition, then.)
But, I refuse to let them go, because they are fun!