Observation I've found:
In the past 10 years (2007-16) every NRL team has made the prelim final at least once. In the AFL us, Carlton, Essendon, Gold Coast, Melbourne and Richmond have not made it to the prelim (so only two thirds of the comp had) in that period.
Since 2003 the NRL had 10 different teams win the premiership (Panthers, Bulldogs, Wests Tigers, Broncos, Manly, Dragons, Storm, Roosters, Rabbitohs and Cowboys). The AFL has only 7 different premiers since 2001 (us, Port, Swans, Eagles, Cats, Hawks and the scum), but more alarmingly only 4 different premiers since 2007 (Cats, Hawks, scum and Swans)
This re-inforces my belief that the draft doesn't create an equal comp (look at the NBA as an example). What is important for an even comp is a salary cap.
Some pretty incredible stats.