I've always loved Scooby Doo, both new series and old (old still ranks more highly though, in my opinion). Heck, I even enjoyed the two live-action Scooby Doo films. Scooby Doo is a very nostalgic cartoon for me, reminds me of when I was in primary school, I'd wake up at 3am just to watch all the old Hanna-Barbera cartoons they played on Boomerang (it was a Cartoon Network spin-off, where they played classic cartoons).