What are your favourite games by series?

For me I'd say: Mainline: SMT IV (for ages I liked Nocturne just as much, but I've changed my mind now) Persona: tie between P2IS, P3 and P5 (I know it's cheating to include three but I genuinely can't decide which one I like more) Devil Summoner: Raidou 1 (I also really like Soul Hackers) DDS and Devil Survivor: uhh i only played the first of each