[@Rex] Well technically yes and no to the Sin vs Holy Knight. Not just any holy knight can go on a fair fight against a sin in the series, Only the fairly powerful ones can. Only reason some holy knights was able to go fight them on even terms is because they didn't have their magical weapons, otherwise only the stronger and higher up ones can.. unless they did the demon blood thing which went badly for most lol..... and i see we have someone who took it literal with the boar sin... sense he literally copied the boar sin from the anime/manga just made it male..

Though of course most of the characters haven't put a mystical weapon for their weapon so probably could go even in fighting.