If you had to choose what family Altobello was part of, what would it be?
I'd say the Barzini family.
Don Altobello was the consigliere of Rico Tattaglia from 1955 until 1961,at which time he became Boss of that family.
I was asking wat YOU think what family he would have belonged to, not what Winegardner thinks.
It just does not make sense to me that a Tattaglia (who were regarded as low-life pimps by Don Vito) would have become godfather to Corleone's only daughter.