The pc version does indeed have some nice little touches that the console (well, PS3 version) lacks, but I'm not sure if it's pretty enough to warrant waiting for. It's definitely easier to control on the console, though the interface is completely customizable for the pc, so I might change a few things around.
All things considered, I may wait and pick up the pc version just to save ten bucks and get some additional flourishes.
Oh, and I dug the hell outta the demo. Not being a huge devotee of the animated series, I don't mind these voices coming out of these beefier characters, and I think the overall art design is pretty impressive. Looking forward to the full game.