Has someone mentioned Scooby Doo yet? Oh, it's been mentioned a dozen times over? Well... count me among the masses, I guess.
What about Spongebob? Hrm, at least a few mentions, eh? Bugger.
Most of what was on Nickelodeon, really. I don't know, between Animaniacs and Batman/Superman, by the time we finally got cable, all the Nickelodeon shtick just came across as being... childish. Strange thing to say, I know, but that's how I felt.
Isn't it strange how we all distinguish these cartoons? Some are just old cartoons, but some are "nostalgic" and that makes them sacred. You, person reading this right now, consider this: When you were reading the other posts in this thread, did you feel a twinge of irritation for anybody who spoke ill of a cartoon you personally enjoyed? Why? And no, I will not offer hypothetical explanations, I'm leaving that up to you.
Food for thought.