A while ago I started a thread about who supports/follows which teams in sports other that rugby, and rugby teams other than ones in their own domestic competitions.
I'll elaborate on my list, and why where I can
Support:
Super 15 - Crusaders. They are our franchise team, and also, I lived in Canterbury for 15 years
ITM Cup - Tasman - I grew up in Nelson. They are my local team
Plunkett Shield etc - Central Districts - I grew up in Nelson. They are my local team
State of O - Queensland - two words - Graham Lowe, the first and only Kiwi to ever coach a State of O team. The legacy lives on and a continue to barrack for them to this day.
Follow:
Aviva Premiership - Harlequins - Have been since I was taken to a Courage League match back in 1987 between Quins and Mosely (??). If I recall, I liked Quins multicolored jersey.
Magners League - Scarlets - because any team that played on a ground where they had a saucepan on top of one goalpost needed to be supported. Actually, they earned my respect when they beat the All Blacks in 1972
Top 14 - Biarritz - because I stayed there many years ago, and loved the place.
Premier League - Spurs - my Dad was a Spurs supporter, born not far from White Hart Lane. I was born in Enfield, a short distance north of Tottenham.
Serie A - La Rossoneri (AC Milan) - They play in Red & Black. Also I own a signed Paulo Maldini #3 shirt.
NRL - Wests/Tigers - was a Balmain Tigers supporter as a kid
UK Superleague - Wigan - the Graeme Lowe connection again.
AFL - Essendon Bombers - They play in Red & Black.
NFL - Cincinatti Bengals - Less Nessman was my favorite character in "WKRP"; always mispronouncing sportsmen's names, and going on about the Bengals losing again.