Question Of The Day: Cheney Vs. Biden--Who Won?

Dick Cheney and Joe Biden butted heads in separate interviews on different networks over the weekend (Cheney criticized the administration's response to the Christmas Day attack, criminal trials for accused terrorists, and Biden's claim that Iraq withdrawal will be an achievement for President Obama; Biden said Cheney is "factually, substantively wrong on the major criticisms he is asserting"). Who won this back and forth?