A cool question my answer would have to be a bit complicated.

Cell Shaded adventure: The Japanese are very good at these, I like Narato, DBZ, Cowboy Bebop, Afro-Samauri, Tri-gun and my favorite is Trinity Blood. I also like the work of Genendy Tartosky(spelling) Samauri Jack is a brilliant cartoon. Also I am a big fan of the Batman Beyond series.

Comedy: Tiny Toons, The Animanics, Pinky and the Brain, EEK the Cat, The Terrible Thunder Lizards and of course the classic Bugs Bunny and the Road Runner.

CGI: all the Pixar movies are pretty good, Cars is my favorite there, but for shear beauty and action , Squaresoft's Final Fantasy VII Advent Children completely anihilates anything Pixar or Dreamworks has delivered to date.

Old School Action: Thundarr the Barbarian, X-Men (from the early nineties) Flash Gordon, Tarzan, Thundercats, Silverhawks, and Blackstar

Adult Content: South Park, Trippin the Rift.