Because the 5X is a true successor to the original 5, a phone that many people loved. Also, i love stock android, but have never owned a Nexus, and would love to with one of the best ones yet
If asked why I want to win this phone, it's because it's not just a want. It's a need. It would be the perfect companion for day-to-day activities. Considering its very powerful specs and latest technology with it, there's no reason not to love this phone. Updated already in Marshmallow and will still be an heir to future updates from Google, I can be more than content with this phone. Many ways better than iPhone. And it's a Nexus!
I really want the battery life. My Nexus 5 dies all the time and the new small CPU system looks cool. Literally cool, because my 5 also frequently gets hot.
I would love to win this for my wife who is currently using the first gen moto G. She really needs the upgrade as her phone is giving her all kinds of fits.