Franz would probably fall into that neutral category, since he doesn't exactly have a strong sense of morality. I would say he is makign the effort to be good rather than bad though, as if he were to fall into an alignment, it would be a weak good.
He does love his magitek, being a Garlean, and is literate, which says something in a predominately illiterate setting.
He does love his magitek, being a Garlean, and is literate, which says something in a predominately illiterate setting.