Tranmere Rovers, England
Hometown club, in the third division of English football. A few friends chose to follow the nearest glory club (Liverpool) and be a sky tv fan, or follow Everton, Liverpool's smaller arch rival. Unlike most other leagues, the support and passion in the lower leagues is massive, and results in several large away support in many games.
I own a season ticket and go to about half of the away matches.
I spend about £500 a season on watching them!
As for preferred teams elsewhere:
Japan: Urawa Reds
National teams: the British sides, Italy, Venezuela
Never in doubt, such an acquired taste.