Isn't it funny that a thread intended to remind people of -current- kid's shows that don't suck ends up turning into a nostalgia-fest? I'm not saying many of the suggestions are bad, to the contrary, most are, or should I say -were- awesome, but have mainly finished and only really show up as re-runs.
That said: One current, and ongoing show I like is Batman: The Brave & The Bold. Basically each episode Batman gets to team up with a hero from the DC universe, or, should I say they get to team up with Batman. Many heroes and indeed villains showcased appear for the first time in animation, and some long forgotten faces such as Plastic Man get a look in too, all in all a nice mix of the familiar and the obscure. The show isn't especially dramatic, like Justice League or JLU, but it's fun, and often exudes the sense of an endearing homage to the Silver Age of DC comics while never taking itself too seriously.