Ask HN: Need recommendation for powerful content publishing API/CMS

Hi there --

We're a sports data analytics company (www.getscorecast.com) that seeks to integrate written content into our website.

Can anyone recommend a CMS that is powerful for developers but also has a simple-to-use interface for writers? We don't need the many website-building features that Wordpress offers -- we've got that covered.

We need software that is focused on publishing content -- primarily text, but flexibility for video and audio would be nice.

I've looked at a lot of the content API companies like Prismic, Craft, Contentful, and Osmek. Does anyone have personal experience with one? Can you recommend one over the other?

Thanks!