Neutral Good. Good, helping others, is your primary concern, without allowing either dogmatic adherence to law and tradition or personal pride and a desire to "not be told what to do" getting in the way. Order is a tool to set up ways to help the most people, but can easily be abused by unscrupulous people to advance themselves at the cost of others, and Neutral Good feels no compunction against ignoring laws which get in the way of doing Good and helping others. Chaos is all too often to prideful, stubborn, and too concerned with personal freedom to be ultimately concerned with helping others.
People who sue others for breaking ribs while performing the Heimlich maneuver and saving the suers life is a good example of Law getting in the way of Good, as is the theoretical case I was always asked in different classes of when a man who knows someone dieing of a rare disease who can't afford the cure because it is being sold for an exorbitant price by a pharmaceutical company, the man is perfectly justified in stealing the medicine to save a life and the Law be damned. Or ignoring an international embargo to deliver medicine and food to sick and starving people.
Doing Good, helping others to be healthy, happy, and free, is the primary concern of Neutral Good, and that is the very best alignment. The law is a tool to promote Good, and when it gets in the way of Good it should be discarded. Likewise with Chaos, it should be used when it will promote Good and ignored when it doesn't. Lawful Good restrains it's Goodness according to the wishes and order of society, and Chaotic Good is too prone to getting its feathers ruffled by being told what to think or do. Neutral Good weighs it's options and does takes the best course of action to help others.