I've owned the PH-1 and 3T and used them at the same time for a few months. The screen is one of the big advantages the PH-1 has over the 3T. As long as you get one without much light bleed, the brighter higher resolution PH-1 IPS LCD looks quite a bit better than the 3T Optic AMOLED.
The PH-1 camera isn't that bad. IMO, it went from terrible to decent/solid after a ton of updates over several months. Both tend to struggle with low light pics unless you use the monochrome on the PH-1. I remember my old Nexus 6P consistently took the better (more detailed and accurate) pics in different settings. There's monthly r/Essential photo threads if you want to see some examples of pics from the PH-1.