So I finally got around to finishing Golden Deer, and I gotta say, I'm glad I played it last, it felt like the most complete and satisfying route, I really liked Claude and I feel that I really agree with him politically, as well, since Silver Snow, Crimson Flower, and Blue Lions, I was wondering for so long, who the hell are TWSITD, what went on with Nemesis, and what are the Heroes Relics, and finally Rhea/Seiros told us everything about Zanado, the Red Canyon, and everything above, which was the biggest relief ever, finally knowing all the pieces of Three Houses, and because of that, I'm a little more sympathetic to Rhea, also in this route alone, you deal with the Flame Emperor, Death Knight, TWSITD, and Nemesis, all the villains of the story, as well, Nemesis being a Final Boss was very climatic and felt like the most anime-esk ending, yeah I know he's not really developed and is kinda bland, but I thought it made sense, also God Shattering Star is just amazing, and is arguably my favorite final boss song in the game
Overall I gotta say Golden Deer was my favorite, it's just a better Silver Snow, and It feels the most satisfying storywise, Blue Lions and Crimson Flower are also good and deal with all the Dimitri and Edelgard lore too, so you really need to ay every route to know the whole Story, it's kinda like the 3 routes in Fate Stay Night
This was my favorite Fire Emblem game of the ones I have played for sure, and I'm looking forward to the new story content and extra dlc for next year