( Doctor Who Season 4 Episode 2 Review (Warning, Spoilers~!). )In Conclusion...I love Donna. She old enough and strong willed enough that she isn't influenced by the Doctor like the others were. She makes him see things her way. The human way. The humane way.
( Spoilers )I knew Donna was right for the Doctor since Runaway Bride((when she slaps him. Again. Donna: "Are you enjoying this!?")), but this Donna is exactly what he needs. ((I hate myself for saying/thinking this, but)) He doesn't need Rose or Martha or Jack. He doesn't need someone to goad him on, to follow along or to help him; and he definitely doesn't need someone to (hero) worship him. He needs someone to stop him, to show him where he's wrong, to point out his mistakes. He needs to shown that he is a man, because he is a man, and HE IS NOT a God.
And that is why I hated Rose in Season 2. It wasn't just her leaving that makes him this way in Season 2 and 3, it was her being there and not stopping him. Goading him on. =(
Yes, I AM a Rose/Doctor OTP Shipper.