[Blind-sysadmins] screen reader ratings

All, I've put together a rudimentary screen reader rating page. http://www.iavit.org/~john/screenreaders/ It was triggered by the different comments on this list about the quality of different screen readers. There seems to be some disagreement about the capabilities of the different screen readers. I am hoping to collect all the pluses and minuses of each screen reader and end up with a overall rating for each. I threw together some very preliminary numbers. I don't feel that I know enough about each screen reader to actually rate them. So I put a feedback link at the bottom of the page. Any/all corrections are appreciated but please do include the rationale for your opinions.