iPhone XR. Wasn’t a bad phone, but the display compromise, the massive bezels considering it was the X style, and single camera. It was a year I didn’t want to spend over $1K on a phone so went cheaper on the XR. Last time I’ll buy the cheaper model for the sake of cheaper. As they say, “buy nice or buy twice.”
I have had a 4s->5s->6->6 Plus->6s Plus->7 Plus->XR->11 Pro->13 Pro->15 Pro Max. My favorite phone overall is the 7 Plus in the matte black. Was so fast, water proof, solid state home button, incredible camera for its time, and looked and felt amazing. Second favorite is probably a tie between the 5s and 15 Pro Max. The new titanium/alloy frame with rounded edges and lighter weight make the 15 Pro Max very nice to hold. Thin bezels are also great.