I just watched "Father's Day" this weekend from Series 1 and I almost came close to losing it. My eyes were tearing up by the end. While I understood the Doctor's frustration with Rose in this episode, Rose's actions were also understandable. I don't know what it's like to lose a parent at a young age, but I can imagine that the idea of saving them if you have a chance to would be strong.
This episode reminded me how much I loved the character of Rose Tyler. She knows that her mom isn't perfect and she finds out in this episode that her dad isn't this great man that Jackie made him out to be, but that doesn't matter to her. She loves both of them despite their flaws. And in the end she was closer to her dad than ever before.