Trump was sick. He sniffed about 60 times that I counted. Ran out of steam right after 10 o clock, and the last half hour was very weak for him. Sentences falling apart, repeating himself, and his answers really showed he wasn't prepared.
IMHO - the reason hilary collapsed in polls in mid-September is that young voters believed she had serious illness and wasn't fit to serve.
Tonight, 100 million people saw her laughing and energetic, and Trump was sniffling and really had poor answers. He just didn't act presidential. he interrupted constantly, he bragged about unrelated things... Trump really showed he's much better with less time. Given 4 hours, he would have only gotten worse, and Hilary would have only gotten stronger (we saw her go 11 hours and get shinier by the hour).
personally, trump's tax policies help my ass MUCH more, so if he wins, I'm cool with that. And he's a 911 truther, which is super interesting. But I think in ONE WEEK, we'll see hilary moving up 3 points and those 3 points coming from Trump. Those who doubted her health were just reassured.