AP classes read Inferno in HS.
Mine didn't, we did read To Kill A Mockingbird though. I had already read it twice by then--once in 6th grade and one in 10th--but every time I read it I understood more I guess.
I HATED Lord of the Flies. I think we read it junior year if I'm not mistaken. It was just so unrealistic to me--12-year-old boys just aren't mature enough to create some kind of little organized society like that.
I did like when they burned the island up or whatever, though. Also the whole "KILL THE PIG CUT HER THROAT SPILL HER BLOOD" or whatever bit. There were some good laughs there.