WordPerfect's "Reveal Codes" mode was the best feature a word processor ever had. You could see exactly what was causing your formatting problems, and surgically fix them. It's like viewing the HTML of a web page.
I don't have a copy of Word handy, but I don't think it is nearly as detailed. Wordperfect would show you all the formatting, but also marks for tables of contents and indexes, columns, images and other inserts, etc.
My school had WordPerfect on every computer in like, 2013. I had to install AbiWord Portable on a USB disk just so I could work on .doc files without the formatting being royally fucked up.
I wrote documentation at Ford for a while and when we switched from WordPerfect to Word I got a waver for 2 years to continue using WordPerfect because it was so much more efficient because of the ability to see all formatting. When they forced me to Word I quit writing documents for the most part