I'm kinda in the same vein. I always looked more forward to the Justice Friends and Dial M For Monkey segments than the actual Dexter shorts. Didn't dislike the show, but it was always kind of a "I'm just here until something better comes on" kind of show.Dexter's Lab never really caught my attention. It wasn't bad or anything, it was just a very forgettable show in my opinion.
The one segment I did really like is when he and his friends are playing D&D, Dexter is an asshole DM, gets booted out and replaced by Dee-Dee.