Has an AFL game ever ended 157-34?
Exactly once. On August 27, 1932, Sydney beat Hawthorn 157-34, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 157-34 in league history.
That makes 157-34 the 3883rd most common final score out of 6,649 that have ever occurred in AFL. One point away, 158-34 has happened never and 157-35 has happened never.