Which do you think is unique about antropology?is it holism or comparative perspective?

ho·lism
noun
Philosophy
the theory that parts of a whole are in intimate interconnection, such that they cannot exist independently of the whole, or cannot be understood without reference to the whole, which is thus regarded as greater than the sum of its parts. Holism is often applied to mental states, language, and ecology.
Medicine
the treating of the whole person, taking into account
mental and social factors, rather than just the physical symptoms of a disease.

Comparative Perspective - About Sociology
Definition: The comparative perspective is based on the idea that a society or social system cannot be fully understood without comparing it with other societies or systems.
sociology.about.com/od/C_Index/g/Comparative-Perspective.htm

Get the point? Comparative perspective applies to sociology, not anthropology -- living societies, not dead ones.