Markdown is useful for a quick note, AsciiDoc is useful if you want to go a bit deeper into customization and features.

But I find myself reaching for (Xe)LaTeX quite often once the document I'm trying to compose requires even a little custom content. Am I alone in this? What's your favourite go-to for quickly setting up not-so-standard documents?

Latex is too much hassle and wysiwyg ratio is too low

@aviophile Lack of wysiwyg doesn't bother me at all. I usually only compile documents once or twice anyways. Even with AsciiDoc or Markdown I usually don't have a wysiwyg tab open.

True downside to latex files is lack of readability for non-technical users in source code format.

Latex in itself is not a hassle imo, initial setup can be a hassle sure but once you defined your own latexmk recipes and know your packages it feels like a second home for typesetting. For me atleast.

Yes. Markdown or Bust.

I love LaTeX

@PonySlaystation I share this sentiment. LaTeX is my bread and butter when it comes to document creation. AsciiDoc is a close second but is too limited for some usecases.