Additionally, I can then throw the content up on GitHub pages or AWS S3 and cut down on hosting costs.
Our current startup is much more dev focused (API analytics) so we went with Jekyll and absolutely love it. Just code in Markdown and your favorite editor and host on GH pages. It's free and super fast. No need to worry about theme settings everything is version controlled. These days, even if you need dynamic content like search, you can use Algolia or Lunr if the index is small.
I guess once you hit a point where you have a large team writing and scheduling content to be posted, static generators may not scale well accordingly (and Ghost will prob be one of my first picks), but we love it for smallish dev focused teams.
It looks like a lot of Octopress users have migrated to vanilla Jekyll for their needs.
Lacking PHP experience, I've never felt that comfortable in WordPress, but I can't deny that It Just Works. Easy to install and there are millions of users for easy troubleshooting.
If you want a technical blog, Ghost also "just works" and is far, far better, cleaner, more beautiful out of the box imo. I use their Pro version for our company's blog (https://articles.hsreplay.net/) and it's just unbelievably good. I'm so glad to have found it and I'm a huge, huge fan of not just their product but also how they run their organization.