Even as a kid, which was obviously a time when I was easy to please, I hated Scooby-Doo. So many episodes follow the same formula and the humor in this cartoon sucked a bag of dicks. I think people only like this cartoon because of nostalgia.
Robot Chicken did a good parodying Scooby-Doo and Friday the 13th.
Now if you excuse me, I'll go watch some Ren and Stimpy.