Has an AFL game ever ended 33-27?
Exactly once. On August 18, 1900, Essendon beat Fitzroy 33-27, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 33-27 in league history.
That makes 33-27 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 34-27 has happened 1 times and 33-28 has happened never.