Batting for Afghanistan
They say that impartiality is one of the keys to being a good reporter. You should have the ability to step back from the subject however close to your heart and be able to ask questions, observe their faults and if necessary be critical.
But I've got to say the hardest I've ever been tested in my features with in terms of impartiality has been with the Afghan cricket team.
They are hand on heart the most open and accommodating group of sportsmen that you'll ever meet.