One of my favorites is Courage The Cowradly Dog. Why??? Because I adore dogs and courage is the cutest! Also, even though it's a classic cartoon, it used to scare me alot when I was little.
My other favorite one is Scooby-Doo. What can I say? I'm in love with cartoon dogs. Anyways, I really did like this one because I loved to watch and find out how they solved the mysteries.
Like you said, I really did NOT like the Jetsons. Why??? Well, in all my honest truth, the characters just plain annoyed me. Every single one of them, but especialy the robot.
Also, another one I really disliked was Tom And Jerry. Why??? Because I didn't think the plot was going anywhere, and each episode was basicly the same...cat chases mouse, mouse outsmarts cat. Too simple for me.