Meh, this looks fairly amusing.

I'd say Itachi, at this point, considering Orochimaru's condition and all.

Though I say Itachi, I still believe Orochimaru to be the better villain, what with the staying power, greater ambition, etc, etc. I think that poor Akatsuki, I-killed-my-family poster boy hit his low point by giving Sasuke the thumbs up to his own eventually possible defeat.