Apple Pages. It also renders fonts much, much better - the difference in kerning quality is night and day. Unfortunately, Pages just doesn’t provide a lot of flexibility and power for formatting the document. It’s more like Google Docs - suitable for high school book reports.
Pages is awful for things like bibliographies and referencing. It's LaTeX is janky, underpowered, and for some ungodly reason avoids computer modern like the plague. In 99% of things you will be just one option short of what you actually want to display.
With that said it is easy to use. The documents almost always look like a document and not a bunch of text that has incidentally ended up on the same page. It doesn't take up too much vertical by using side panels well. It makes everything it does let you do easy.
I have used heaps of WYSIWYG editors over the last 30 years. I have used some LaTeX ones too.
Pages is the only one where I would keep the UI and just add more functionality (somehow without changing the UI).
Better font rendering has been a hallmark of mac apps since OS X was released. Even the version of TextEdit (mac Notepad/WordPad analogue, for those unfamiliar) that shipped with OS X 10.0 likely beats out Word when it comes to things like kerning.
What’s strange is that I use Microsoft Word on a Mac, and the font rendering is uniquely terrible in Word. At times it can seem that Microsoft goes out of its way to make its products do a bad job with core functionality.
