Here's one that hasn't already been mentioned above:
Garden of Words. The animation, the atmosphere, the art style, the music, the simple but still endearing story. Everything is so beautiful. Whenever I watch this, I cry, and not just because of the drama. Goddamn it, Greenery Rain is one of the best compositions ever, period.
P.S. Don't kill me over this, guys, but . . . I haven't ever seen any Studio Ghibli film ever, in my entire life (even though I've been watching anime for about thirteen years now XD). It's like, I wanna watch them all, but kinda not? Idk, I can't explain it. It's not a "bad fandom" thing either.