I disliked the way that Rose came back. It just seemed a bit rehash-y. She had her moment, she got to say goodbye and then... back again. It was an anti climax, I thought.
And my DD was annoyed that Rose got the doctor clone. As she rightly pointed out, you can't just substitute one person for another just because they look the same, otherwise identical twins would actually be interchangeable.
Martha was in some cracking stories, I agree. Blink is an amazing one -absolutely terrifying, although, again I didn't like the Weeping Angels brought back and everything explained, as they did later. Over explaining is one of my bugbear. Hence I hated the reintroduction of River and that story arc. And the Mel's episode - I couldn't watch it all.
I loved it when River was introduced in the library and we had to guess the relationship.
Besides, she said then that the Doctor was younger than when she had known him. Well, he certainly wasn't any older as Matt Smith 