what is your favourite and least favourite episode of season 2, and why??

The finale is my paborito and least favorite. It's my paborito because Rose and the Doctor express their feeling for each other (more or less for the Doctor). It's my least paborito for some obvious reasons. If you hadn't guessed, I'm a huge Rose/Doctor fan!! So I hated that the Doctor didn't get to say I pag-ibig you. I hated the thought that they would never see each other again. :(