P3's crew is more a bunch of strangers who to a certain degree hate each other
I'm playing this right now and have no idea where you get this from. There's some animosity in the fringes of the group and one (1) example of actual hatred that is resolved the second it is introduced, but "hate" in general?
I enjoy the feeling of school mates bound by circumstances rather than "BFFs <3" since the latter is so prevalent in squad RPGs. It makes the friendships that do bloom feel kind of natural and the small moments of trust feel earned rather than relying on "we're BFFs 'cause the plot told us to be."
Not that the writing or characterization is anything great, it's a teen RPG, but the feel is at least somewhat novel compared to many other RPGs.
What I don't enjoy is how the protagonist is supposedly a mythic leader of men who keeps the group together through sheer force of charisma seeing as he is a silent oaf who spouts one line of dialogue max during any group interaction