Board Thread:Dark Souls/@comment-9375302-20130603170334/@comment-1852943-20130701181326

Not sure what data that other wiki site is using, but from what I've seen and what others here have tested, Occult seems to beat Divine when faith is about 50+. That's not taking into account enemy defenses, though, so if an emeny has higher or lower magic defense the results will vary in favor of one or the other weapon path.

If you want an Uchigatana bad enough, you could just kill the Male Undead Merchant.