I was dreading being nominated, so I'm not going to tag anyone, but think about it-- I was kind of surprised by how easily I thought of these 10.
(Side note-- stuck with me is not the same as favorite. But one way or another, these are strong in my memory.)
From the Mixed-Up Files of Mrs. Basil E. Frankweiler
The Lovely Bones
The Scarlet Letter
Romeo and Juliet
Nancy Drew series
A Tale of Two Cities