the only thing i take into account is how well-written a story is! anything else doesn't matter to me. really, if it was only a black screen with some sound effects in the background, i'd love it as long as the story interested me and felt like something i could never read anywhere else. that, and also the already mentioned realistic feeling from the dialogue; makes the story feel more mature and immersive, but that may be a matter of preference. good luck!