Your most heart pounding battle? The one that you thought that you were going to lose until by some twist of fate, you win?
I've had those before...It was against Yunalesca, I felt Auron's sorrow and pain, when he found out that his best friends sacraficed themselves for nothing...It was a battle of deep emotions. That's when Auron became my ultimate favourite character, plus, it was the moment when the story was turned around in a huge plot twist.