Nothing in B:TAS or S:TAS has gotten to JL levels of awesome yet but I'm not far into either. My favourite moment in any show is Superman's "world of cardboard" speech in the JLU final episode, but the Cadmus arc was pretty much wall-to-wall brilliant as well.

Favourite voice actors: Conroy goes without saying as THE voice of Batman, and likewise Hamill's Joker, and I think George Newbern does a superb Supes (beating Tim Daly's from S:TAS which is also pretty good). But Maria Canals as Hawkgirl is a delight, and manages to create so full a character who, for me, I had no context or background knowledge of this character, so the fact that I got her so quickly was a testament to Canals's acting.