For me, when Sazh finally gets his son Dajh, even for the brief moment, it was a very tender and heartwarming feeling. I literally felt my heart break when Dajh crystallized when he completed his focus. Another scene that almost drove me to tears was watching Lightning murder a hundred people, all innocent, in the train. She was so ruthless and that made me dislike her throughout the game. It is definitely not my favorite scene, and man, I would like to slap the hell out of her.