I had a pixel 2, went through three of them. All three had hardware issues. I am overall happier with the experience on the 6T as a daily driver. In my opinion the camera is solid and more than capable. No I can't take crazy night shots but most of the time I don't need to anyway and I can still get decent ones. I use mine for video recording of my kids a lot and the audio quality on the Pixel was an issue that I don't have with the 6T.
I get all day battery and then some with the 6T, no need to top up most of the time and I had to every day with the Pixel 2. This is the first Android phone I can remember since the early days that I haven't put a third party launcher on it. The stock launcher does everything I needed Nova to do. I think oxygen OS goes a step farther with it's customizations that enhance the user experience while not getting in the way and bogging it down like Samsung does. It also gives you choices on how you want your UI to look and how you interact with it. Google doesn't do that with the Pixel.
I personally think the haptics are fine on the 6T, I have no issue with them but I had issues with them on the Pixel 2. As for the screen, I've long been a proponent of 1080p screens on phones. There's no need for anything higher resolution on a screen this size in my opinion. I think the screen is fantastic and I'll take the battery life and performance boost of not pushing the extra pixels over a denser display that is arguably better.
My $0.02, the 6T is the better overall package and you gain far more than you lose coming from a pixel. Just my opinion.