Of what I've played of the series: Persona >>>>> Devil Survivor >> DDS > Nocturne/SJ. I need to play the Devil Summoner games still. Nothing's topping Persona for me out of the SMT stuff though.
Yeah I think Persona's the best subseries as well but I don't think the gap is nearly as big between the series. Devil Summoner, at least the PS2 games, are the weakest link although they're still alright games to play.
I need to get around to beating the DDS games. :\
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