I've found OS 9 (barring 9.0.1) to be much more fault tolerant than 9x.
something goes down in 9x, it's very likely a bluescreen is coming.
In 9, guard pages and kickassity left 9x behind. not to mention the craptasticality of DOS hoverin' around in the shadows. DOS was the worst. 9x, except for maybe 95 sucked.
95 honestly wasn't so bad, because 98 brought all the bullshit. 98 was a little more stable, not really much slower, but it was BLOAT WORLD.
Windows Me liked to consume human fecal matter and then burp in your face