P3 has the best ending credits song I've ever heard, bar only Still Alive
And P3 has mostly amazing music, besides Kimi no Kioku you've got Burn My Dread, When The Moon's Reaching Out The Stars, The Poem for Everyone's Souls, Living for Determination, such good songs..
Persona 4 has overall better music, but the opening and ending aren't on par with P3. Though it ditches (luckily) the hip hop that some few tracks of P3 had. And the battle theme is simply amazing








