starwars was good. empire was the best of the first three, but lucas didnt direct or even write the screenplay for it. he didnt direct jedi either, and only wrote half of the screenplay, which I believe was mostly ewoks (maybe not entirely).
the prequels would have bombed at the first one if they were made in isolation imo. alas, this really isnt important to think about. the asd angle makes more sense than anything else I had thought of