I switched to NeoOffice several years ago and currently use LibreOffice. Wrote my dissertation on it. And this despite having access to MS-Office for free through a university license.
I tried it because I wanted to try free (as in freedom) software and never felt the need to switch back as it did everything I required of a WYSIWYG word processor. I guess I have just gotten so used to it now that when I use Word/Excel etc (mostly briefly on someone else's computer) I get all confused about their new panel based menu system.
The point is not that they are better but that they are a suitable replacement for all but a very small niche of power users. But people tend to compare the limit cases even if all they'll ever use are the day-to-day functions.