In short, Harris waxed Warren something wicked. The fat burly preacher couldn't hold a candle to Harris. Warren got the last word in, and promptly served his Christianity something special with a horribly ignorant Pascal's Wager appeal. It is truly glorious to see Warren do almost more damage to his own fairytale worldview than Harris did.
But perhaps my favorite part of all is early on in the debate, where Warren proudly displays his ability to see faces in the clouds passing over his head:
I see the fingerprints of God everywhere. I see them in culture. I see them in law. I see them in literature. I see them in nature. I see them in my own life. Trying to understand where God came from is like an ant trying to understand the Internet. Even the most brilliant scientist would agree that we only know a fraction of a percent of the knowledge of the universe.
Yes, Warren. We all see a butterfly when we spill coffee on a piece of paper and fold it in half. But some of us have come to realize that it is merely a coffee stain. We even developed a word to describe this phenomenon: Pareidolia. Hopefully, someday, you will realize this too.
I can only imagine what kind of bozo Rick Warren would come off as if he were in another field of study, like, say... astronomy!