I am a huuuuuge fan of Tom and Jerry as far as classic cartoons go. No words needed with those guys--the sound effects and music do it all. And every time one of them breaks the fourth wall, I crack up. Kind of like ANC
's Coyote and Road Runner, but with more variety of locales and gambits.
The Flintstones were great, too--you can't beat an animated combo of The Honeymooners and I Love Lucy.
Also, the original Disney Afternoon stuff is *classic*. I have the Chip 'n' Dale: Rescue Rangers and Duck Tales DVD sets on my amazon.com wishlist. Sadly, they don't have Tale Spin or Darkwing Duck out yet. But I'm holding out hope.
As for more current fare, I love Fairly Oddparents and Foster's Home for Imaginary Friends--love the grown-up humor in both. Spongebob Squarepants is ok, but I'm not generally a fan of blubbering cartoon morons that panders to eight year olds.
When you do things right, people won't be sure you've done anything at all.