Okay, I've done a few small reassessments to my ratings. The predictions now become:

Carlton 99 Hawthorn 79
W.Bulldogs 73 St Kilda 141
Essendon 112 Brisbane 100
West Coast 101 Adelaide 87
Port Adel 110 Sydney 90
Geelong 111 Kangaroos 94
Richmond 89 Fremantle 89
Melbourne 121 Collingwood 93

Probably way off the mark but who knows?