I really enjoyed 2 and 3. And I get having a preference. But they’re more or less the same game so I’ve never understood how 2 is so universally praised and 3 is the black sheep for a lot of people, especially over time.
UC3 has tons of plot holes that make the game feel unfinished. Side characters just vanish and the villain feels like stuff was cut. Even the big cruise ship set piece felt tacked on and is completely pointless.
I still rank UC4 last though since it was too slowly paced and I prefer more action set pieces and monster/spooky shit in my uncharted.