Nye definitely won. It was not a fair fight as Ham's views are extremely absurd. Crackpots like Mitt Romney, Tom Cruise and superfreak have nothing on Ken Ham when it comes to ridiculous beliefs.
One thing I have to say about Ham, he is not as stupid as Nova, i.e., does not hold archaic ideas on race, and he is far more honest than PiMPle, i.e., does not lie about the biblical importance of the WORLDWIDE flood to Christian doctrine and its intimate connection to the story of Christ.
But Ham's arguments are still all circular crap and semantics. He starts with his nonsense term "historical science" and then brought out "kind." The definitions are not compelling or controlling though he insists repeatedly that they are (SF style). His proof that the Bible's "historical science" is true is the Bible.
His claim that because we don't know what existed before the Big Bang or that how consciousness comes from matter, that nothing else makes sense so we must believe in the unseen is nothing but a punt. Why not just accept that we don't know? He is claiming that knowledge of God can be supported by our ignorance alone.
Through much of it his argument turned to how do we find support for our morals or purpose without God. This is completely useless and largely an appeal to emotion.
Then at the end he rejected the second law of thermodynamics claiming that entropy was really due to God slacking. Nye did not make a point of it.
One thing I wish Nye would have pounded him with, with his repeated allusions to CSI, is how we are to solve crimes that we have not observed? Is the science that tells us that a defendant's blood is present at the scene of a crime unusable unless we OBSERVE him bleeding at the scene.