The little moments are the ones that get me
Upon replaying this game, I realised I'd forgotten how much fun the gameplay is.
The moments that I remember (or, at least, the first ones that come into my head) are the background bits of the cutscenes, usually with Penelo and Vaan messing around with each-other (i.e. arguing in the background, building sandcastles, etc).
Also liked scenes with Larsa, Basch's seriousness and his exposition for everything and everywhere (haha, could always count on him), and how Balthier was genre savvy.