Some say that they are fond of drinking "black coffee" without the added milk and sugar, is a true coffee drinker. Actually there are no fixed rules for coffee, for example in the Middle Eastern countries or Africa, drinking coffee plus cinnamon and other spices. Talking about good coffee, drinking black coffee can enjoy the original taste is thick and well-balanced, while the milk or cream can relieve chocolate, sugar is added to change the bitter taste becomes sweet.
For some people, black coffee without sugar is always associated with bitterness. Some people try to improve the bitterness it with supporting components, but the essence of a cup of coffee was then lost. A cup of black coffee without sugar is not necessarily a cup of bitterness, there is a sweetness that can be felt in bitterness for those who can appreciate it.
In short, plus milk, cream and sugar or not, depending on the enjoyment of each. Choose coffee that you like, you'll enjoy the pleasure contained.