Around the beginning, the CGI when it looks like Garnet smiles and falls to her doom...but survives ^^
Pretty much every scene with Kuja; he always has dark, beautiful lines worth quoting.
The almost kiss between Beatrix and Steiner. It always make me laugh.
When Zidane finds out about himself and such on Bran Bal (spelling?), Terra. Very emotional.
The whole ending sequence of the game; the play, and then the reunion ^^
There's definitely more, but those come to mind right away
