What is you favorite type of family to play?

I enjoy playing "patchworkfamilies" where one or both partners bring a child from an earlier relationship, then they may or may not have kids together and perhaps also adopt/foster another one. Sooner or later these couples will marry, that's why I voted "married". But in the beginning they will live together unmarried for a long time. You'd think there'd be a lot of conflict within these families, but there isn't, because I want that better than life experience where a family acts as a close-knit unit and defines itself by their bond instead of by their blood.

EDIT: Actually my favourite type of household is 4-6 roommates, everything from college students sharing a dorm to tourists lost in primeval forests. Family play comes second for me. But this poll was about families, so I voted for my favourite type of family.