Ok, I'll do my favourite and least favourite chapters in each book. It's hard but I'll try and keep the amount of favs as small as possible.
A good rule would be to keep the same amount of good vs bad.
Twilight
Best:
I first think of
Blood Type. Edward really brought on the charm and he and Bella started getting on so well.
Confessions because of the lovely meadow scene. And
The Cullens because we got to meet the awesome family.
Worst:
Not that these aren't good but I just have to choose them as I didn't enjoy them as much against the rest.
Impatience because I felt as anxious as Bella which is good for the book but still, it was so hard with nothing happening! I don't know why but
Scary Stories is down here. Maybe the legends were slightly boring? Sorry. And I'll put down
The Game. It actually didn't come off as very cool and exciting in the book for me. And James arriving was all a bit sudden and confusing the first read through for me.
New Moon
Best:
Waking Up with the emotional turmoil of Bella.
Visitor because I was so happy when Alice was back. And
Volterra because of the awesome chasing down of Edward.
Worst:
The End because Edward slowly detaching himself was upsetting.
Cult because I hated Jacob leaving Bella after becoming this new bitter Jacob.
Eclipse
Best:
Compromise because of the bed scene.
Fire and Ice for Jacob's and Edward's conversation. And
Snap Decision as it provided the best action sequence from the series.
Worst: Hard as usual but I'll put
Legends there because I just wasn't
as interested in the wolves as the vampires. I'm not going to add any more because they all have great bits in them as well as bits that aren't as great. Hehe, I wasn't enjoying picking whole chapters to say I didn't like.
Breaking Dawn
Best:
Isle Esme for the honeymoon.
New because Bella is now a vampire and it's so darned funny.
And
The Happily Ever After for the heart warming end to the series.
Worst: Harder to find without Jacob's Book having a contents. I guess I liked his book less because as I guess you can now see, I don't like Jacob as much as Edward and Bella. But there were also the chapters with the collecting of the vampires that got kinda boring.
Phew that's all of 'em. With each book I became less enthusiastic about explaining my choices.