People will tend to think their side won, regardless.
Trump set a low bar, so will seem to perform better than expected since many expect a train crash. Clinton will exhibit signs of fatigue, or at least be perceived to be, even if she isnt. Facts won't mean a damn. Emotion and quips will be the things that stick out in your head the most.
Clinton needs to keep painting Trump as scary, and projecting strength from herself.
Trump needs to look moderate and Jim jitsu the scary label into Clinton being untrustworthy and lacking judgement.
Will be entertaining.
Lester Holt will appear in over his head.
I'm going with that. Excited to see how it plays out.