Board Thread:Tales from the Tardis/@comment-188432-20140327234318/@comment-5870856-20140328172903

Whichever character you like better, fact is, the Daleks in the Medusa Cascade were going to blow up all of reality. As in, all of it. '''Every. Last. Universe.'' Helping prevent that is a much greater accomplishment than saving one life, even if it's the Doctor's. And even if his death/erasure from history would doubtless mean the end of the universe, there are infinite universes out there, and Rose helped save all of them.

That being said, Donna played a much larger role in the War in the Medusa Cascade, so if she was an option, I'd vote her, hands down.