I've only had the G2 for a week and I miss my HTC One so much! Specially since I have kids and I take a lot of pics inside the house.
HTC One may not have had too much detail but night pictures were clean, quick and never had any trouble.
I have yet to take a single good picture at night in the house whereas I had 1000's of pics on HTC One.
Kids move a lot and HTC One was quick and wide angle lens was a plus.
I am ready to go back to Best Buy and return this and pick up HTC One but there is little bit hope that the blurriness and fakeness at night can be fixed. I tried custom rom and camera modded but they improve one thing but not the other.
HTC One, IMHO of course, has the best night time camera as far as responsiveness, less blurry and just as a consumer. I am no expert by any chance but I see my pictures on my 22" monitor and I can tell HTC One pics were not that good quality but it was closer to real life than LG G2. Heck, I took a shot from G2 last night when kids were watching a movie and it looked like they had masks on, so much processing.
For the first time, my wife's iPhone 5 took better pics just because I didn't have my HTC One.