Carlton and Hawthorn by a mile in front of Collingwood. Our rivalry with Collingwood is more a formality rather than hatred. Carlton and Hawthorn however...going by who I assume most fans of each club hate the most...as an actual club, rather than just a rivalry between two sets of players such as the Eagles v Swans rivalry of the mid 2000s
Adelaide--- Port Adelaide
Brisbane--- Collingwood
Carlton--- Collingwood
Collingwood--- Carlton=Richmond
Essendon--- 1.Carlton 2.Collingwood
Fremantle--- West Coast
Geelong--- Hawthorn
Gold Coast--- ?
GWS--- 1.Bulldogs 2.Sydney
Hawthorn--- 1.Essendon 2.Geelong
Melbourne--- Collingwood?
North Melbourne--- Essendon
Port Adelaide--- 1.Adelaide 2.Collingwood
Richmond--- 1.Collingwood 2.Carlton
St.Kilda--- Collingwood?
Sydney--- ?
West Coast--- 1.Fremantle 2.Essendon
Western Bulldogs--- Essendon