Kubrick made a truly great horror film and he defied the cliches and tricks that have burdened horror films since the dawn of cinema.
Kubrick told his tale of fright in the daylight. If a scene was at night, he was sure to have plenty of light illuminate the screen. Very little visual darkness. The darkness is within the human soul.
Kubrick also made us care more for the villain, Jack, then for Wendy. Jack is so much more appealing.
I could go on. I don’t know of anyone who loves horror movies who doesn’t love this one. Even those I know who profess to hate Kubrick movies love The Shining.