Faulkner is a fairly prolific writer, so there are generally ....
three or four of his novels which most can read with enjoyment. The one I have enjoyed the most is Absolom! Absolom! It takes some concentration to get into Faulkner's stream of conscious style. I found As I Lay Dying easier to read than most of his stories, but I didn't care much for it. The instructor I had for it loved the book, and modern American fiction was his forte. For a college professor with a PhD, I found him extremely lacking in reading classic literature. But he did know Faulkner.
The Sound and the Fury was confusing to me on the first go around. So I read various notes on the novel and watched the movie with Yul Brynner. The second time through the novel was a lot better. If you are going to teach literature, you should finish the book and give Faulkner a chance. If you are just reading for enjoyment, it is not necessary to devote a lot of time reading an author who is fairly hard to digest. I have found that if you read a book and understand it thoroughly, you can make a better decision about it: what you like or dislike. If you just give up, you're allowing the book to defeat you.
As a person matures, their reading can change considerably ....
What you can't abide today may be a favorite tomorrow. Darkness at Noon is a much easier to read novel than The Trial. I liked the Koestler novel much better than the Kafka at first reading (they were both read at about the same time). I just didn't understand The Trial. Years later when I read The Trial, I saw how Kafka's novel was far superior to Koestler's.
Perhaps I didn't make myself clear. When a person is going to teach literature at whatever level, he/she should absorb as much as possible. In medical school, the instructors make courses as tough as possible to weed out those students who can't absorb and understand the basics. In engineering, my major, heavy doses of physics and calculus the first two years separate those who will go on in engineering from those who can't grasp basic engineering principles. So I see nothing wrong in separating those who are going to teach literature from those who are taking English literature because they've heard it was easy. If you can't get through a writer like Faulkner or Kafka, You have no business teaching others. It's not a matter of likes or dislikes, but a matter of ability.