There's enough difference between the Stands and the Personae to believe they are just simmilar ideas created separately, unless you want to get nitpicky in a "THIS IS A RIPOFF OF EVANGELION!" sort of way.>>10216447
Are you kidding me? SK has even less to do with Jojo than Persona. The concept of spiritual aides that only a few can see are much older than anime as a whole, like from actual Shamanic beliefs.