How to stay objective on these rankings? What about a list of independent|objective tests(for the 100 different majors out there) to rank students from any sch

How to stay objective on these rankings? What about a list of independent|objective tests(for the 100 different majors out there) to rank students from any schools when you graduate that acts like SAT|ACT for jobs? do make it optional though, if employer finds that valuable, more college graduates will take it, it will work better than leetcode I hope.