Any list worth its salt should probably nod to at least some of the animated greats: Doug, Rugrats*, Daria, Animaniacs, Pinky & The Brain, Rocko's Modern Life, Avatar, and certainly Batman: The Animated Series.
Admittedly, I can't confidently vouch for all of those shows, but my memories, and the laudatory remarks I've noticed about them over the years, are persuading me that this contention probably makes sense.
*