Everyone keeps talking about the NRL system vs AFL system - but they are both flawed. I slightly favour the NRL system, but any formula that gives team 3, 4, 5, and 6 a second chance in week 1 but no second chance to teams 1, 2, 3, or 4 in week 3 sucks.
Both NRL and AFL system has teams 1 and 2 eliminated in week 3 with no second chance whilst giving lower-ranked teams a second chance in week 1. They both suck.
What needs to happen is this (highest team assume will win in examples below):
Week 1-
1 vs 4 - winner week 3, loser week 2.
2 vs 3 - winner week 3, loser week 2.
5 vs 8 - winner week 2, loser eliminated.
6 vs 7 - winner week 2, loser eliminated.
Week 2 -
1 and 2 = week off.
3 vs 6 - winner week 3, loser eliminated.
4 vs 5 - winner week 3, loser eliminated.
Note: highest-ranked loser week 1 plays lowest-ranked winner week 1 (e.g. 3 vs 6). Highest-ranked teams on competition table still get home-ground advantage even through they lost the previous week.
Week 3 -
1 vs 2 - winner = week 5 (Grand Final), loser week 4.
Note: both teams had the week off so no-one is 'disadvantaged' by the week off.
3 vs 4 - winner week 4, loser eliminated.
Week 4 -
1 = week off.
2 vs 3 - winner week 5 (grand final), loser eliminated.
Week 5 (Grand Final) -
1 vs 2 - winner = Premiers. Loser = runner-up.
We will then have 5 weeks of finals instead of 4, and 10 games instead of 9. 1st and 2nd are guaranteed a 2nd chance in week 3, and if 1st and 2nd also lose again in week 4 then bad luck. Teams 5, 6, 7, 8 have to win 5 games to win the comp instead of 4. If teams 3 and 4 lose in week 1 they have to have 4 sudden-death games to win the comp.
The only negatives I can see are:
The team that qualifies first to the grand final in week 3 will have had the week off in weeks 2 and 4 and doesn't help in their momentum. But to nullify this to an extent, the game in week 3 will be against an opponent that also had the week off in week 2 ( for e.g. 1 vs 2) so this nullifies that preceived disadvantage. The team that qualifies first into the grand final also had 2 weeks off during the finals under the old top 5 system.
Both teams that meet in the Grand Final are likely to have met during the previous finals matches. But this is the trade-off we have to pay for 1 and 2 getting a second chance in week 3 (which they deserve). And this possibility was always the case in the old top 4 and top 5 finals system and nobody complained.