Which had the more successful career, Littorio or Scharnhorst?
Short answerProbably Littorio, because she performed her intended role well.
NotesLittorio is preferred because she operated where she was intended to operate and performed that role well. The comparison rewards suitability to the actual campaign. Before answering, the discussion corrects a force-name mix-up: Force K was associated with mine losses, while Force Z lost the battleships.