So many times this. I'm presently developing a lot of documents for my office with a group of people. If we'd just focused on the content, and not the formatting (layout, font, etc.) we'd have been done weeks ago. Instead, just this morning while peer reviewing a document for the final version, we got bogged down in how to format a section and lost 30 minutes to a pointless discussion that should've been saved for the final revision (once the content was reviewed).
Simple markdown or similar to have a rough structuring/formatting that there are many good editors and presenters for today. Then do a pass through with LaTeX or Word or whatever to (LaTeX may be more appropriate for certain technical documents) after you've written up the content.