There were some books in high school that I really enjoyed that I'm afraid to reread because maybe they wouldn't stand up for me. I'm thinking about Lost Horizon, The Chrysalids, Brave New World, Canticle for Leibowitz, On the Beach, and Grapes of Wrath.
I did read Brave New World in high school, but it didn't do anything for me until I re-read it a couple years ago.
I liked this one when I read it years ago, but when I tried to re-read it aloud to one of my kids[1] I discovered that most of Hilton's characters' dialog read exactly the same—they have no voice—plus the prose was really clunky to read—uniquely so among the oddball books I read aloud to my young kids, and I read them some a lot older than that, plus a couple contemporary to Hilton's book, so it's not an age-of-the-writing problem. It was so unpleasant to read aloud that I didn't make it past the first chapter. Really soured me on the book.
[1] Hey, when they're young enough, it hardly matters what you're reading to them, may as well be something you want to read, unless you're reading them a picture book.
[EDIT] LOL, actually, now that I think about it, Gatsby was another one I read aloud to one of my kids. No problems with that one.