I hated Donna in the runaway bride. But when she came back, and she and the Doctor were mouthing to each other through the glass. She became my second favorite.
Martha is just annoying. I mean, I liked her. And she was pretty bamf at times, but her "love" of the Doctor just came out of nowhere and was ridiculous.
Tuor: Stuff is our resident, hot mess, alcoholic.
Senel: Stuff is the patron saint of getting shitfaced. You replaced your organs with an engine that runs solely on alcohol.
Tuor: You foolish fools, no one can tame the stuffaluffagus!