HTC 10 vs LG V20 vs LG G6, which to buy

Hello, how are you? in first place i would like to explain that my english is not pretty good, so... having said this.
I'm gonna buy a smartphone, my priority is the sound with headphones and secondly the camera (both as photos and videos). I don't care at all about the speakers sound, i mean, nothing at all.

My favorites are:
HTC 10 (this is i like the most i think, because the botons and another reasons)
LG V20 (this would be my second, something that i don't...

HTC 10 vs LG V20 vs LG G6, which to buy

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