I write most of my blog posts using Sublime text directly into html code.
There's no spellchecker, it's annoying wrapping paragraphs in <p> tags, but my quality of writing is 10x better.
Something about my weird coder brain is way more comfortable doing my writing as code. I can also tell when a piece of writing is good, because the code looks "nice", the same as if you write a nice elegant function. It's weird to describe but I swear by it.
I tried writing using Google Docs, but my writing ended up being bloated and waffly, and the overall blog post was pretty meh.