I loved Flowers for Algernon. It made me cry. We read that one in Grade Nine, i think.
I went to high school in the 80s so the teachers stuck pretty close to the "classics" or standard reading lists.
For Shakespeare we read Romeo & Juliet, Julius Caesar, King Lear.
We read Lord of the Flies, On the Beach (which was great), Stone Angel, To Kill a Mockingbird, Death of a Salesman, Beowulf, and A LOT of short stories. We were assigned Wuthering Heights and my classmates refused to read it.
I would have loved to have read a lot of the books everyone else was assigned. Catcher in the Rye was one we fought for but didn't get.