couldn't agree more. I always thought P4 was a bit overrated, mostly in the characters department.
Naoto and Rise were pretty cool though.
I also agree. I couldn't stand most of P4's characters, Rise was okay, and it took P4G's Marie for me to actually like one. Although my favorite is Labrys from P4A if that counts.
I think P5 had the best cast though, even more so than P3 (but maybe it's because I played most recently), but I couldn't even find a character is disliked, not even Ryuji.
Also wanted to add to someone mentioning The Answer in P3 FES before. Honestly, 99% of it is a waste of time, but Metis is really cool, and the ending is pretty good, and it's the epilogue of P3 that most fan's needed. Although the definitive ending of P3 is actually in Elizabeth's story in P4A.
So my advice to skip the terrible and long hours of dungeon grinding is just to watch the beginning and ending cutscenes on Youtube. There's a lot of character development for Aigis that ties into P4A too. I'd even go on to say, if Persona 3 was like FFXIII, then The Answer would be XIII-2, and P4A/P4U is Lightning Returns. So definitely look into that, since Persona 3's story doesn't end with the first game/P3P. There's a whole lot you miss if you only play P3P.