I have almost no doubt that the 6's camera will be up there with the best of the Android devices. I have experience of four WP Nokias, and not one of them has had a bad camera....even the cheaper Nokias had good ones, and the high-end ones had the best. If Nokia have performed their legendary photographic wizardry on the 6, expect good things.
http://m.androidcentral.com/nokia-6
http://m.androidcentral.com/nokia-6