The way I see the final 8 is with the top 2 teams a level above the rest. Sydney and Geelong should play the GF.
Then there are the "maybe" teams: Hawks, GWS, Adelaide, West Coast. Hawks probably a step above the other 3 'cos Hawks but they don't look 100%.
And then we have two teams that shouldn't bother playing finals. Both the Dogs and North have fallen apart weeks ago.
In my opinion the only uncertainty is which two of Hawks, GWS, Crows and WC play the Prelims against Sydney and Geelong.