Nexus Imprint!! Going from an iPhone 5s, this is one feature I would sorely miss on an Android. I think it actually does an even better job than Apple, based on videos I've seen of performance...
I'd like to win this phone for my 8 month pregnant wife. We will be in the hospital for Thanksgiving and I'd like to give her the Nexus 5X as a surprise in the hospital to replace her current phone that really could use replacing. That would be awesome and a great way to thank her for carrying another baby of mine around for 9 months. LOL And I'd promise to post a baby pic taken with the new phone. We can put that new shiny camera to the test!
I'd love to upgrade my current Nexus 5 and am looking forward to the fingerprint scanner in particular. My two year old has almost figured out my pin code and I need new measures to keep it to myself.