I can't see what's so wrong with the current system tbh.
Melbourne finish minor premiers, get a second chance after losing.
Warriors knock off minor premiers, get rewarded with a home final the week after.
Manly and Cronulla rewarded for their top 3 finishes, respectively gaining a week off each after comprehensive victories.
Roosters lose, but their top four berth ensures a second chance, while fifth-placed Brisbane are rewarded for knocking off the higher placed team with a home semi in week two.
Dragons and Raiders not good enough to cut the mustard and are out.
Teams 6 and 7 knocked out, and 2 and 3 get a week off this year. So, all in all, teams 1,2,3,4,5 and 8 are still in play. I think the current system does reward the top teams enough, without making it too easy for them to get through to the GF.