Android

  Windows lacked the fit and finish of the Macintosh. But
  it didn't matter. Because there were hundreds of Windows
  machines whereas there was only a few variations of Macintosh...

This has long been the conventional wisdom, but given recent history, I'm less and less convinced that it's true. There's a myriad of other factors to consider, like hardware decisions, marketing strategies, and much more.

It's really quite imprudent to bet on Android for only that reason.

I sometimes wonder if Novell didn't help Microsoft in the business market more than seems to get reported. Novell provided a pretty good (for the time) networking solution that allowed decent management.