Another vote for Harry Potter.
DD (12) is Twilight-obsessed. She nagged me into reading Twilight and I honestly couldn't see what the fuss was about - I thought the writing was poor tbh. I started New Moon and gave up about 4 chapters in as I just wanted to slap Bella till she stopped moving, and then slap her some more to make sure. I did make it to the end at the second attempt, but Bella is just such a whinging little mare and Edward is borderline abusive, so I just don't get the whole thing.
I did think the last couple of HP books could have done with ruthless editing (50% of the last 2 or 3 books was filler) but still way better than Twilight.