Not enjoying it. I was tempted to put "bad writing," but if something is badly written I don't enjoy it, so same thing.
I think it's important to try the classics. I mean to throw yourself in and see what happens. If you make the effort, they always repay you. I have been following Harold Bloom's reading list for years, with mixed results. In some cases, they're just too hard. Some of the greats utterly defeat me. I can't get through Dante's Divine Comedy, for example, or Proust. I also find Joseph Conrad heavy going. Bloom is a huge fan of Walter Pater, the 19th-centruy art critic, but I can barely get through a page.
Then there are great writers I utterly loathe, not because they're difficult, but because I can't stand them as people (Philip Roth, Hemingway). In other cases, I can't explain it. I like the idea of Tolkien, and really want to enjoy his books, but something inside me recoils in disgust.
All my favourite novelists write well: Austen, Dickens, George Eliot, Evelyn Waugh, Anthony Burgess, Virginia Woolf, Aldous Huxley, P G Wodehouse. I also want something life-affirming. Give me D H Lawrence over Cormac McCarthy and Thomas Hardy any day. Humour is important too, and vivid, memorable characters. I've just finished David Copperfield and feel almost bereft at having to say goodbye – the characters are so strong I feel like I know them. Finally, I love good dialogue. Many of my favourite writers (Oscar Wilde, Evelyn Waugh, P G Wodehouse, Anthony Burgess, Virginia Woolf, Henry James, Aldous Huxley) are masters of dialogue.