doubleofive said:

I've only met the Runaway Bride at the closing of the episode, I already don't like her.

Yes, Donna's quite shrill and unlikable in "The Runaway Bride." However, she improves quite a lot by the time she becomes a full-time companion in series 4; a lot less "fishwife" and a lot more likable (strong, independent, and resourceful, but most of all, she doesn't "fancy" the Doctor like Rose did). You'll find out once you hit series 4. FWIW, Donna Noble was my favorite companion of the "new Who" era until The Ponds came along. What can I say, there's just something about a redhead. :-)

(And David Tennant is still my favorite Doctor, with Matt Smith running a close second, followed by Peter Davison. I know that many people are positively gaga over Tom Baker, but I haven't seen enough of his episodes to see what the big deal was. I started watching Who on PBS when they were showing Davison's episodes, and only caught a few Baker eps.)