Dead-on Deathstroke so far - he's pretty awesome.
Not so Dr Light - he's the Two-Face to Jim Carrey's Riddler - clearly the less important villain which is why they chose to make him act like a bit of a rube - or a powered henchman at best.(I doubt he's an actual doctor - despite the fact he played one on "Scrubs" ) I actually had to rewatch the jailbreak from last week because people were saying Dr Light showed up and I really had no idea that was supposed to be him. Between his look, the circuitry in his skin etc. I did not realize that's who that was. Or maybe I was too distracted by the actor having shoulder pads under his t-shirt. I mean really - he has light powers, who cares how broad his shoulders are?
I'm intrigued by Kori now that she' not amnesiac and they're not trying to force her into a thing with Dick. She might be the least like her comic book incarnation, but I'm liking her a lot more this season - especially her relationship with Raven.