I've only read 'For Whom the Bell Tolls', 'A Farewell to Arms' and a number of his short stories. From those two, I'd say I preferred 'For Whom the Bell Tolls.' I liked 'A Farewell to Arms' and its ending probably impacted me more, but the character of Catherine really annoyed me. I'll probably check out 'Sun Also Rises' next. Anyway, any fellow Hemingway fans? If so, what's your favorite book of his?