Nexus 5X because it's smaller, which is better for one-handed usage and it still comes with the awesome fingerprint scanner and Google's Nexus OS experience!
It would be my first Nexus experience, having smooth OS with pretty nice hardware. Read a lot of great reviews about it, but sadly out of my price range. It would also sound cool saying I own a N5X . Nexus 5X is my preference.
I would choose the Nexus 6P....was there really any question. I need the pure nexy love with a super power house, buttery smooth phone like the 6P. Ok I know this sounds very suspect but hey I NEED THAT NEXY
Not that I dont like my Note 5 but I would much rather have the 6P!!
I love all nexus phones and am sad I'm missing this one lol.
I need the 6P so I can pass this Note 5 on to my wife