Comparisons play a central part in our everyday reasoning. The same is true for value comparisons; we want to choose the best alternative when we are making a choice. Sometimes, however, it is hard to determine what the best alternative is. In fact, it may seem as if neither alternative is better than, worse than, nor equally as good as the other. Such cases have recently been much discussed and it has been argued that the alternatives may be incomparable or be related by some previously overlooked fourth value relation. In this thesis such claims are rejected. After an in-depth exploration of value relations and topics such as semantic vagueness, it is argued that there is no reason to assume that things cannot be related by the three familiar value relations.