HIFK. 3 tier in Finnish Football. For me it's not about the quality of the play, but the feeling that this is "my team" and I can go to see them live whenever they're playing.
But I do follow lots of football from various different countries. Sometimes interesting teams and leagues, sometimes interesting players. Some teams I follow: Urawa Reds from Japan, Hammarby from Sweden, Union Berlin from Germany etc. Of course if there's an interesting game going on, I'll watch it, but I don't really care who wins. Though I usually go for the underdog or home team.