I haven't played P5 but of 3 and 4 I prefer 4. Entirely subjectively too if I'm being honest. The later games improved the combat but I still have fun, I even enjoy plaything The Answer, and I just prefer the story more of the two. P4 had a more natural feeling friend atmosphere I think but I preferred the P3 cast, especially Aegis. I also liked the scale of the thread better and the entire nature and aesthetic of the dark hour.
It's not so much disagree as the back and forth between you and the others shows to me there's more interpretation than actual factual input from a source. That's just me though, I rather dislike the direction the story and lore took so I'm only here till KH3 anyway. (well maybe, undecided)
I did quit caring about lore or posts like these on sites because I don't agree with story facts not being WITHIN the medium of that story. (aka, if it's so important then it should be told to me IN that game) (plus some of Nomura's headcanon just makes it worse or confusing, like the Xion's false keyblade stuff among others)
That's my two cents. I will add, you and the other guy aren't taking challenge to your beliefs too well.....