[JrKASperov]

Katana, every time. The katana's blade is SO THIN at the edge uncomparable to the western blade, that the amounts of pressure produced by it can cut through more than the average razor blade. You don't nééd mass to cut through something like armor, only pressure, and the pressure from a katana is SO much larger than a broadsword or so that the katana will win. That said, a katana is way lighter and faster to wield, so knight takes a swing, usually misses due to having a heavy slow lumbering sword, and gets slashed five times in the time it takes him to recover the swing.