God Tier
Devil Summoner: Raidou 2
Devil Summoner: Raidou 1
Digital Devil Saga's 1 & 2
Awesome Tier
Lucifer's Call/Nocturne
Persona 2
Persona 1
Anime Shit Tier
Persona 4
Persona 3
Although to be honest Persona 3 and 4's soundtracks are still quite good.