I didn't even know Quatro Pro was still around.
I'm not much of a WordPerfect fan, ever since I had to turn in a paper in college entirely reverse-indented because when I opened it to print 15 minutes before class, WordPerfect randomly decided that I should have a hanging indent on *every* *blinkin'* *paragraph*, and I couldn't manage to put it back before I had to leave to get to class on time. (Class was about a 2 minute walk from my room, so we're talking about 12 trying to put it back.) I've been a solid StarOffice/OpenOffice user ever since.
However, I've known several people for whom I have had a fair ammount of respect who deffinitely preferred Word Perfect. In fact, I think everyone I've dated has been a Word Perfect user by preference, though my wife uses Word now 'cause it came with her machine.
Oddly enough, though the lawyers I've worked with have often told me that most lawyers use WordPerfect, they don't. There must be something good to it, though. Good legal secretaries are *serious* power users of word processing. (Lawyers as a class seem more to be power users of the microcassette recorder :))