Well an update to my comments on this thread.
I went to a concert Saturday night with friends at a big venue, great stage lighting with the venue pretty well lit,,, I was taking some pictures with my 6S while one of my friends was taking pictures with his S6 Edge, same lighting with both of our phones in Auto camera mode.
When we compared pictures the difference was night and day and not in favor of my iPhone 6s, with my friends S6 the pictures were simply amazing, with my 6s all my pictures had a thin smoke like haze and the picture quality was actually embarrassing.
Anyhow, because of that experience, yesterday I traded in my iPhone 6s and got the Note 5 (same camera as the S6),,,, I will miss the tad bit better video quality of the 6s and definitely miss the awesome Slo Mo of the 6s but for me the still picture quality is what is most important so I'm back to rockin a Samsung Note,,, next year I'll check out the iPhone 7 and see if they caught up to Samsung yet.
Cheers
Davyo