Depends on the day. On days when I'm both not at a consulting site and don't hit flow early in the day, I'll cop to "all of them that I find interesting, and some of the ones that I might not but which had good comments."
I wish there was a way to see what stories you (and a few other HN members) found interesting. That would help me build out my weekly Hacker Newsletter!
Or you could make scraper for saved stories, and ask few people you are interested in to scrap their stories.