There really are alternate preferences with how much one wants the features compacted. One is not 'right' over the other. 'Character' might be imparted with shorter lengths and 'subtlety' with the longer lengths.
Obviously, as we all should know, distance from the subject is the REAL determinant for perspective here, as elsewhere. But, since adult heads are usually about the same size, that 'distance qualification' becomes somewhat moot if you seek uncropped, tight shots. - David Lyga