I also like the Pages/Numbers/Keynote suite. Of course, I'm not a heavy user of office apps at home, so large or complex documents aren't something I'm encountering day-to-day. If I needed to build such a beast, I would probably lean on the 'old standbys' like LaTeX and the like. LibreOffice is still a great platform and one I reach for if an oddly formatted document comes to me, but it's not something I'm using for crafting from scratch.