I mean, this is the man who wrote "Aria Di Mezzo Carattere" for a SNES game (FFVI - Opera Scene), the guy more then deserves his acclaim. That opera piece never fails to move me to tears every time I hear it. This may be subjective but FFXIV does not to me, have any music that reaches that level of emotional quality. (With the exception of "Tomorrow and Tomorrow").
Civilizations (La-hee) made me honestly not stop laughing in Shadowbringers, my friends were laughing at my reaction because I was like "Who Greenlit this!?". I can't decide if its one of the best or worst pieces in the game, purely for comedic value. I've never been a fan of semi-yodelling but I think some people are. To me it was just hilarious to listen to. Walking into the Greatwood was like complete tonal whiplash, it didn't really fit the environment either but I'm not sure where in Shadowbringers that piece would fit, it seemed completely random.
I have to say, the waltz theme for Eulmore Daytime (Indulgence), still remains on of my favourite pieces in the game. Shadowbringers had such a good leitmotif in that expansion and the musical team got a lot of milage out of it. For me, that's when the music peaked for this game.