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).
Sacred Stones, I really liked the fact that there were just extra fights you could do for fun and the challenge dungeon. I really disliked the 3d artstyle in PoR, and didn't play any after that. The waifu-ization of modern Fire Emblem proves me right.