SO many.
I couldn't even tell you how many times I've read Gone With The Wind or The Chronicles of Narnia or the Harry Potter series or The Neverending Story. Too many times to count. In fact, I wrote a 30-something page mini-thesis for my Children's Lit certificate about the Harry Potter books, I think I know them forwards and back.
I love Cozy Mysteries, so I've read everything that Agatha Christie, Lillian Jackson Braun, Dianne Mott Davidson, and Donna Andrews ever wrote, most of them multiple times. Same for the Jane Jeffries mysteries, Cleo Coyle's books, and the Kate Jasper Mysteries. I've read the first 3 books of the Demon Hunting Soccer Mom mysteries a bunch of times too.
For a while I was really into Charlaine Harris, I've read everything she ever wrote. And I went through a Twilight phase as well.
Like you, OP, I'm a big fan of Michael Crichton. Airframe, Rising Sun, and Congo are my favorites I think, but I enjoyed all of his books. Timeline, Jurassic Park, and The Lost World were a bit too gory for me. And if we're talking about science fiction, I have to admit that I spent way too much time in college reading Ray Bradbury for fun.
When I was 11 or 12 I used to love to scour used book stores and thrift shops and found many of my favorites there. There were three books in particular that I absolutely loved to read in Jr. High and High School, I read them over and over until they fell apart, then I'd repair them and read them to shreds again, it was a cycle. I lost them in a move and never bothered to replace them because I was at the point in my life where I needed to get rid of books, not buy more. They went out of print decades ago, but someday when money's not so tight I'll track down copies to replace them:
Last Junior Year
Can I Get There By Candlelight?
Celia Garth (the story reminds me of Gone With the Wind, except it's set in the Revolutionary War)