Hi aspirant, first of all both have no comparison over the thing as M.Sc data science is a master degree or PG degree whereas BBA is a undergraduate degree or UG degree course.

The both B.Sc data science and BBA are equal at UG level but data science at master or PG level is much advance and premier course in comparison to BBA.

Also M.Sc have better placement records than BBA.

Thank You.