I just finished Path of Radiance and kind of wanted to talk about the series.
Mine would probably be Blazing Blade or Mystery of the Emblem, BB because having some weird cult terrorist group as the villains was more fun than Evil Nation nº12837, MotE because i think it has some of the best gameplay and maps of the franchise while having a way better story than the other newer FE games (that i have played, Awakening and Fates).
Radiant Dawn is probably my favorite with interesting mechanics and I dig the normal difficulty. It also has kickass character designs and third tier classes. I do have a real soft spot for Sacred Stones as my childhood entry point. I struggle with keeping up with older ones with fan translations on emulators. I recently got into Symphony of War: Nephelim Saga and it really scratched my FE itch even though it's about squads of characters. Story is pretty boring, though.