I know his Green Arrow was strong and I loved the art though I haven't finished his whole run.
I've been sort of nonplused by his DC work compared to his work on the Black Hammer universe at Dark Horse and Sweet Tooth for Vertigo.
Sweet Tooth and Black Hammer have blown me away. And yet I've read so much DC stuff from him since New 52 that just hasn't.
What are your favorite runs he's written (or drawn) for DC? What about Marvel while I'm at it?