This page lists the most popular mains for each region in Super Smash Bros. Ultimate
Queensland Queensland
Bowser Bowser - 30 players
Victoria Victoria
Bowser Bowser - 35 players
New South Wales New South Wales
Cloud Cloud - 22 players
Donkey Kong Donkey Kong - 22 players
Incineroar Incineroar - 22 players
Lucina Lucina - 22 players
South Australia South Australia
Cloud Cloud - 22 players
Australian Capital Territory Australian Capital Territory
Bowser Bowser - 14 players
Western Australia Western Australia
Captain Falcon Captain Falcon - 20 players
Cloud Cloud - 20 players
Northern Territory Northern Territory
Roy Roy - 1 player
Wolf Wolf - 1 player
Pyra / Mythra Pyra / Mythra - 1 player
Tasmania Tasmania
Donkey Kong Donkey Kong - 7 players
New Zealand New Zealand
Joker Joker - 27 players