Timely snapshot/review -- skim the print version of the article for details (including Google Docs Beta taking the highest on-line rating)
Almost everyone does two things with Microsoft Office: complain about it and use it. But the fact that most likely you and everyone you know is using it doesn't necessarily mean it's the suite you should be using. The way Office works—and the high price that Microsoft charges for it—may not really suit your needs or your budget. Office outclasses all its rivals in overall power, but the challengers do some things better. Once you know what those things are—and aren't—you may decide it's time to switch.