The one thing I can't argue is that Word still trumps Pages on many levels. Basic word processing, no worries, you can choose either. But every time I launch Pages and want to do something a little more robust, I keep going back to Word.
Truth be told, even Word isn't the best. I'd prefer Frame Maker for professional quality docs creation, but Adobe axed OSX support years ago.
There really isn't a professional level word processing/publishing platform for Mac or iOS, more's the pity.
I keep hoping that Apple will beef up Pages to the point of professional, but no dice.