User blog comment:Leolab/Mayuzumi Yukie (Majikoi series) v Assassin (Fate/Stay Night)/@comment-422690-20160206185136

So...

Katanas: Yukie wins. Monohoshi Zao is simply too long to be practical here. It has some extra reach, which will be hard on an opponent not familiar with any Japanese swordfighting styles, but since Yukie is both familiar with and highly skilled at using a katana, that advantage is gone. Further, the structural properties of such a long, thin blade are dubious at best; said problem is only compounded by the low quality of the native Japanese steel that would have been used to forge the blade. Assassin needs to parry, not block, and parry perfectly at every stroke, or his sword will bend or break. Note that this happens in the VN and is a plot point; I'm not simply applying metallurgy to fantasy here. Edge: Yukie.

TBC in chunks so that WIkia doesn't eat my vote again.