There is no answer to your question, way to many variables.
Each will produce different power curves, with slightly different torque curves and different peaks. However, they both will cost you a lot.
Are we talking stock motor with tiny blower, or a actual build?
I am building a turbo motor, see sig for build thread, and its not cheap by any means.
A supercharger IMO is easier to get the car built, less custom one off stuff, it all bolts up and exhaust is easy.