Both phones are very nice, considering they're vanilla Android and give you fine build-quality and photo-taking capabilities. I'll wait until next year to see what type of Pixel XL vs Moto Z comes about for the 2018 lineup.
Must have for next year:
3,500 - 4K mAH sized battery
Dual rear camera with 16-21 MP OIS f/1.7 or better
Shatterproof and scratch proof display without needing a screen protector
SD card slot
IP68 rating
6GB+ DDR4 RAM
128GB internal storage
QC SD835 or better
Headphone jack and USB-C
5.5"-6" 1440p-4K OLED display
Make all of that happen and you got a winner.
Stylus...eh gimmicky, can't really see a need for it unless it's a work phone for worksheet and notepad usage.
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