I own the 5C and the Moto X, and have found myself reaching for my Moto X more and more. I took a road trip recently and the combination of the Google Maps and the Moto X's speakers was an amazing experience (the speaker volume is absurd. I had to turn it down because it was too loud. I never thought I could ever say that about a smartphone).
I personally don't always use the always listening feature, but I find nearly everything else on Android a better and easier experience: better keyboard experience, better mail, better browsing, better notifications (I've actually added NotifierPro to get drop down banner notifications like iOS. It works much better on a larger screen. Far less obtrusive!), much much easier to share things between apps and people (I love how it remembers that I upload to DropBox the most so it'll list it as first when I share things), easier access to settings and toggles, the back button!... etc.
I know you're not unfamiliar with Android so I'll stop there, but the list can go on and on. Don't know if that helps you or not.
I'm really looking forward to what the next Moto X brings. Currently, the Moto X I have is a work phone and the 5C is my personal phone. This may change soon.