I use Org-mode w/ GNU Emacs for all of my blogging(shameless plug: amitav.net). I like Org-mode because it's easy enough to write, looks nice enough, can be exported in quite a few formats, and the code block handling is chef's kiss. It supports quite a few languages and has a feature I've seen in no other editor before, where you can chain together code from different code blocks, and evaluate it, inside of the document itself. I tried out a few different blogging platforms with first class Org-mode support ([Blorgit](https://orgmode.org/worg/blorgit.html) and [lazyblorg](https://karl-voit.at/tags/lazyblorg/)), but they ended up taking up a bunch of time to set up, so my current process is just manually exporting my Org files to HTML, then using rsync to send them over to my server, then I have a Ruby script which just appends an index to the bottom of each file and serves it. I find Org-mode a lot more expressive and natural to write than my previous blogs which were in Markdown.