European Lutherans v. American Lutherans
I have heard several discussions over the years whether Lutherans in Europe or Lutherans in America are more faithful to the tradition of Martin Luther.
Lutherans in Europe seem to live closer to the social teachings of Luther while Lutherans in America have traditionally attended church services more often. Both have strengths and weaknesses.
However, with the explosive groups of the Lutheran church in the Third World and the continuing decline of the Lutheran churches in Europe and America, the whole issue may become moot in the near future.