Anime is in a class by itself and not considered a cartoon by me.
For cartoons... Ren and Stimpy, Simpsons, Futurama, South Park, Dexter's Lab, Powerpuff Girls, and various Warner Bros. stuff.
Oh yeah, Pinky and the Brain was definitely much better when it was just a short on Animaniacs than when it got it's own show. hehe, there was just something about the one where Brain was shrinking things with the magic words of "Charlie Sheen, Ben Vereen, shrink to the size of a lima bean!" Though that pales in comparison to the chant to return the living dead back to their graves in a Simpson's halloween episode.