FE4: 8/10. Amazing soundtrack, memorable characters and a great story (in Act 1). Was not afraid to experiment and do something new and imo it worked out very well, and the lack of polish in some areas adds to the game's unique charm. And then, the dull, barebones, wyvern fest that is gen 2 happens. The game also has a really great dark fantasy esque aesthetic, which carried over into FE5 giving the games a unique, retro tone.
FE5: 7/10. This one I'd place lower than Genealogy. The soundtrack has some good tracks but on the whole a significant step down imo. The gameplay is unique and tries something new, however, and fits the game's overall tone well. I didn't warm much to the characters outside of a few, and the story is imo quite dull, especially when compared to that of FE4.
FE6: 4/10 This one was probably the most boring FE I've played. Lengthy, repetitive maps that seemingly dragged on forever. Annoying soundtrack. The only story I skipped through on my first playthrough because it was so uninteresting.
FE7: 4.5/10 Well, it's a step up from FE6 I guess? But not a big one. Soundtrack is still bleh, one of my least favorite casts, slightly better but still boring story, dull gameplay. As you may have figured out I'm not a big GBAFE fan, so might be the best time to say I hate GBA graphics and animations. The colors are far too bright and hurt my eyes, and everything looks way too cartoonish. And the animations just look over the top anime levels of ridiculous.
FE8: 5/10 Well it's my favorite of the GBAFEs because it has a soundtrack that doesn't suck and some characters I actually like. The graphics and gameplay are still mediocre at best, however, though the game does feel like a bit of an improvement in the graphics department. Gameplay wise, it's passable.
FE9: 9/10 And now for some good FE again. FE9 had significant graphical improvements, as well as a solid soundtrack and a likeable, memorable cast. The story is imo the best in the series, and the gameplay, while easy, is definitely still solid and enjoyable. My only real criticism is the game's pace: it's near unplayable without speed up.
FE10: 10/10 Perfection. Soundtrack, graphics, characters and gameplay were all perfected in this one complete package. And the story, despite its faults, was still very engaging for its scale and stakes, and honestly, for FE standards that automatically makes it among the best in the series. This is a game I have come back to again and again: I have probably completed around 200 playthroughs by now.
FE11: 7.5/10 Now this was a game I was surprised to find myself really enjoying. Sure, the story and characters are barebones, but the game is aware of this, and it's not the focus. What is is the gameplay, which here is excellent. It's a strategy game, plain and simple, and it delivers.
FE12: 7.5/10 Most of what I said about FE11 applies here, though FE12 introduces some likeable new characters as well as an attempt at a slightly deeper story. However, these changes are cancelled out by the introduction of the self insert.
FE13: 4/10 This one is difficult for me, since I did find Awakening a fun time when it released and on my first couple of playthroughs. But then I went back to it a couple of years after it released and found it just... Unplayable. The gameplay was so repetitive and dull, and overfocused on galeforce and pair up cheese. Not to mention the constant anime tropes and aesthetic.
Honestly, the Fates games I found to have solid gameplay across the board, even in Revelation (which I believe to be overhated in terms of map design). The games are however held back by story, characters and anime aesthetic. They're still highly enjoyable for purely their gameplay, however, and I can look past their anime aesthetic to appreciate the solid strategy game underneath.
FE15: 9.5/10 Now this was a game I adored and I'm not entirely sure why. The characters and music were both excellent and the story was passable, but honestly, I really enjoyed the gameplay? Definitely not a common opinion, but hey, I'll rank the game highly nonetheless.
FE16: 3/10 And now, the snooze-fest that is fire emblem three houses. Repetitive would be an understatement. It's a shameless copy paste of the same elements over and over. The story had potential but threw it out of the window, and the characters are obnoxious one note anime tropes constantly shoved down your throat. To top it all off, the game looks like an early Wii U game.