Reddit is better if you want to focus your attention to certain topics such as /r/javascript or /r/reactjs, for example, and you'll be certain that you'll get all the relevant news (along with some noise).
HN is for general news, and new new things with deeper discussions. There's lots of noise on HN too, if all you want is news or programming related things. Lately, I think, 'intellectual-porn' has increased on HN (such as Wikipedia articles of mildly-interesting things), which I think are no different from cat pictures.
Quite often I spot something on Reddit, and then search HN for additional discussion.
(obviously you shouldn't follow the default subreddits, which are optimized for maximum addiction for general population)
HN is for general news, and new new things with deeper discussions. There's lots of noise on HN too, if all you want is news or programming related things. Lately, I think, 'intellectual-porn' has increased on HN (such as Wikipedia articles of mildly-interesting things), which I think are no different from cat pictures.
Quite often I spot something on Reddit, and then search HN for additional discussion.
(obviously you shouldn't follow the default subreddits, which are optimized for maximum addiction for general population)