In all the photos your average person is likely to take, the iPhone looks considerably better.
Better colour, contrast, exposure and detail.
Look at the carousel shot, most non-technical people would pick the middle one as the best.
If you follow the link, the photos of the girl on the bridge, sitting in the restaurant, by the coloured lights and on the bench are all perceptually better on the iPhone.
Are you kidding me? Look at the carousel picture, the reds are far more vibrant in google pixel in comparison to the washed reds of the iPhone.
Regarding details, look at the paint labels in the top middle of the first photo. Google pixel's look sharper while the iPhone's look significantly blurred.
I just wish iPhone camera pictures had more vibrant colors and less noise.