Scarim Coral said:
Let see-
Young Justice
Sym-Bionic Titan
Teen Titans
My Little Pony Friendship is Magic
Transformer Animated
Time Squad
Dexter Lab
Avengers: Earth Mightiest Heroes
Though I am ambivalent to most of those shows up there, I'll vouch for that one. If I were to tell you that a cartoon about My Little Pony of all things was not only good, but smartly written, genuinely funny, had well defined characters, and was one of my favorite shows on TV these days, would you believe me? No, of course not. You'd be a fool to do so. You have to see it for yourself, friend, because such a thing has never happened before, so far as I know.
Also, some of my other favorite shows:
Adventure Time with Finn and Jake: Great humor, charming art style, and set in a bizzare fantasy world inspired by D&D and 8-bit video games. My #1 favorite show.
Chowder: This one used to be my favorite show before AT came along. The art direction is fantastic; a riot of color and variety. The humor, I feel, is not as good. Kind of cheesy, but still very nice.
Robotomy: Made by the same guys who did Superjail!, this series is also extremely violent, save with killer robots rather than humans. Kinda pushes the limit of what you can say on a kids show. Shame that it was cancelled after only 10 episodes.
Regular Show: Of all the ones I've listed, this one probably makes the least sense. Every episode follows Mordecai and Rigby, groundskeepers of a park (and an anthropomorphic bluejay and raccoon for no reason), being assigned to do some simple task, slacking off, and ending up awakening some monster or eldritch horror or rend in the time-space continuum. Dialogue's pretty snappy, too.