I love the music in both of them. I played P3: FES with the alternate music from the Reincarnation CD, which is superior to the original (especially the battle theme remix is much better). School and Town theme are great imo. What lacks is the dungeon exploration music (same case for P4). End boss music is awesome in P3 and both of them have great boss battle music. I liked the hip-hop beats of P3.
I always sing now and then in my mind: "...like James Bond... like Mohammed Ali... oh yeah da tarada datara tada, baby baby! ..."
Heard some of the re-arranged songs of Persona PSP and they surpass both P3: FES and P4, so I´ll be definitely be buying, even though it´s gameplay-wise far worse.







