The most popular Japan only Fire Emblem game in the west for a reason.

User Rating: 9 | Fire Emblem: Fuuin no Tsurugi GBA
Wow this game is fantastic, the storyline, allthough not as good as Fire Emblem 7 is great. You play as Roy and the Lycia Aliance army as you travel throughout all of Elibe to defeat the evil KIng Zephiel of Bern.

The graphics for when it was released were pretty damn good, they were smooth and easy on the eyes. For the gameboy Advance back in 2002 they were good.

The gameplay was a bit different to previous Fire Emblem titles, it still was a turn based strategy and still has Swords > Axes > Lances > Swords but it also bundles up Fire, Wind and Thunder magic into Anima and introduces a magic triangle of Anima > Light > Dark > Anima.

This is the game that introduced the support system, it was based off FE4 and FE5's love system but improved on it by brining in conversations and special endings (well only for Roy and his lady friends).

This is the game that revived the Fire Emblem series, and it came back with a bang. If you can speak Japanese import it from somewhere if not just look around there are 100% complete translation patches.