What Word has is nothing like WP Reveal Codes, where all formatting codes become visible. This is extremely handy for finding and dealing with formatting problems.

In WP there is much more control over layouts etc, such as paragraph numbering and bullet points.
Then there are the simple things like being able to justify different chunks of a row in the same row. For example, in a header you might like to have the heading left-justified and the page number right-justified. I have not worked out a way to do it in Word, so my workaround is to left-justify and insert tabs. Not as elegant.

If you have never used WP you are not missing anything...

Luckily my need to use advanced formatting features has dropped, so Word is not such a hassle, I have even started originating documents in Google Docs, and its word-processor is still pretty basic cf Word and WP.