I had a hard time choosing between Mi A1 and Honor 7x. Been a Fan of Stock Android I thought of getting mi a1 for better updates and development since kernel Sources were released by Xiaomi yet I chose honor 7x over mi a1.
Reasons :

Speaking of Battery:
Me Being a hard core user I get around 5-6 Sot that double Sot what I used to get on my 1+2.

Camera:
I am not huge fan of photography on Phones yet this thing has hell lot of Filter in it.

That Gyroscope Update:
It was turning point for many people for not getting this phone that lack of Gyroscope sensor but we received an update which did bring it back.

Build Quality:

Aesthetic :
Many People Say it looks a bit like an iPhone from the back but I totally disagree with it. I love it so much that even though I bought rugged case for protection I feel like to use phone without it.

Strength:
Even though it has those 2.5D Glass over the front I have seen many dropping test videos it survived like a warrior.

Development:
Initially I thought it wouldn't be any development any or such On this Device yet I see Twrp , Root , a freaking Oreo Rom out so early.

Our thing I really like about honor is that take any company phone you'll see hell lot of difference between its main Flagship and Budget device yet here it's different story you do get same 18:9 ratio as flagship one same resolution ( v10) Even bigger screen than flagship one just Processor upgrade and camera there's nothing much more you missed in its budget segment.

I must say Honor 7x is surely a flagship Killer.

All I want further is more development :)