Well, the game play's better for a couple of reasons. Sure the dungeons aren't actually random, that has a bit to do with it, but the battle/fusion's what I'm talkin' about. In P4, you were basically fusing your own abilities, but in Nocturne, those things you create become your teammates instead of, well, you. :3 Makes it so much easier to have an epic team.
& Awww... But I wus havin' fun thar. :( XD