I had almost ALL windows phones since Lumia 820, exception was L7xx. The general camera experience, even when compared with recent flagship devices' cameras, are unique and amazing, considering the software/hardware matching, similar to that obtained by Apple between nothing more but median hardware and IOS, coming to the OS experience.
I had many Android gadgets since Android 4.2, and have a Galaxy S9 as my daily phone, I had 2 HTCs One max M7, a LgG3, a LgG6, and some of the incredible low cost, but efficients, Honor 9 lite, Umidigi S2 (great budget device with the worst camera I know), an Oukitel, Ulephone power3.
I had iPhone 6s plus and 7 plus, which a pasted to my daughter and wife, due to the persistent strategy of cheating people through apologetic publicity, like a communist/nazist regime does.
I deduced the programmed obsolescence of Apple's device since my iPhone 4, the most revolutionary Apple gadget I know., still in IOS5.x.
Tried to return, with the decease of WM and the Lumia series, but noted that the crucial advantage of the Apple experience over the ridiculous incompetent Android, until Marshmallow version had changed radically and virtually disappeared, remaining trust price gap, among them.
Apple camera suffers the same thing, sses its excellence being beated every semester. As I said, my daily phone is a Galaxy S9. In the general experience, I miss my LgG6, and think seriously to return to it. Camera experience is good and accurate, as a German sedan, or a Lexus, but somewhat insipid, I enjoyed even more my LgG6, and most of all, my 1520/950xl experience.
Lumia cameras had been beaten here and there due to hardware an software implementations, in one or other feature, but the general experience is still a standard, a remarkable reference, among all.
I have the following opinion:
General experience: Lumia 950xl/main camera on L1520.
Portrait mode: iPhone 7s plus/8 plus.
HDR Pixel 2xl, 3xl.
Hardware: S9, S9 plus, S9 note.
Software: Lumia series.
Night shots: Matte 20 pro followed closely by S9 e Pixel 3xl.
Resolution: Nokia 808/1020, followed closely by Matte 20/P20.
Technology: S9 series.
Sound: Lumia 930/1520, followed closely by HTC U11/12 series.
Video: Matte 20 pro, S9, Sony Experia.
Pro mode: Lumia 1520/950xl.
Wide angle: Lg G6, V30, G7, V35.