Windows never crash? Well, it doesn't bluescreen much anymore, but it's
still deadlock-prone, especially if it loses network connections.
e.g. the backup domain controller went down at work today (our desktops
are Windows XP *sigh*). Within seconds *everything* on *everyone's*
desktop had frozen. Even my VNC and X sessions were stalled. Most of the
mouse pointers had frozen (but not all), and ctrl-alt-del did nothing.
Even the primary domain controller froze. It all stayed stalled until both
the primary and backup domain controllers were simultaneously rebooted.
That's robustness for you. (If everything's frozen solid, it can't crash.)
The time was when heavily-interlinked NFS systems could do that in the
Unix world, but I haven't seen anything like it for many years, and even
at its worst Unix gave you more tools to diagnose it than roomfuls of
simultaneously-frozen boxes. In some ways Windows is going *backwards*,
even before you look at the Vista trainwreck.