Originally Posted by
Coffer
1. Better cast.
Shit: Mitsuru, Koromaru (lel) ; Chie, Teddie
Poor: Ken ; Yu (P4MC), Kanji
Average: Akihiko, Shinjiro ; Yukiko, Naoto
Great: Minato (P3MC), Yukari, Junpei, Metis ; Yosuke
Waifu: Aigis
And that's just from the parties. I'm not going to go over the antagonists or other important characters because I'd rather not spoil anything for anyone else.
Admittedly, when doing these rankings I'm kind of also taking into account the drama CDs and P4: the Animation.
2. Better story. The pacing is terrible at first but it really picks up just shortly after the midway point of the Journey. I would argue that the Answer kind of brings them closer because of how terrible it is, but the final few hours of that (plus the characters themselves) make up for the rest. And plus, if we're going to consider the Answer we should also consider the stuff that was added in P4 Golden, which is even more of a joke.
3. Better S-links, though it would've been nice if you had the option to simply befriend most of the female options in P3 as opposed to getting it on with all of them. Harems are bad.
4. Marginally better OST. It's worse if you take the actual average into account (BABYBABYBABYBABYOOOOOOO), but P3 has a number of exceptional themes. P4 only has a couple at best.
Most of the stuff that P4 nails better than P3 pertains to gameplay, so it's not enough. MARIN FUCKING KARIN isn't anywhere near as big of an issue as people think, and hell, it's solved in P3P.