In it's area of expertise the Katana is superior to most other swords.
I actually did a load of research into this; Katanas when not used in their very specialized role are very much inferior to Western swords. They weren't even used as the primary weapon of choice in feudal Japanese armies.
And about all that folding stuff, movies like "the last Samurai" would tell you that the Japanese were much more advanced than say the Irish at the time, and all that folding made superior blades and so on ad infinitum. Despite the fact that the Japanese went through recurring dark ages where they lost the skill to make decent Katanas several times, they were designed to be disposable at first (and so quite useless), while they were working with inferior iron there were Gauls making steel and if you want to see some truly beautiful metalworking:
Pattern forging. One ups folding. Europe was once the workshop of the world, it made the best swords. Post industrial world however didn't really care as much for quality swords as such as quality death dealing machines of big bigness.
In it's area of expertise the Katana is superior to most other swords. It's an impressive weapon when it comes to sheer cutting power, but requires the user to be mobile. Without mobility the katana becomes useless after that first strike, because the technique is all about positioning and footwork.
The whole first strike thing is accurate enough. There's a reason the Japanese adapted it to strike upon drawing: Draw in case of Mongolian horseman and spear is broken. European swords focused on adaptability or specialization. There were so many designs, changes, experiments in swords from a highly competitive continent whilst the Japanese kept the same design for 1400 years.
Well, it's impossible to fight with a plate armor on foot. That's why knights had badass horses, and were killed by peasants with polearms if they fell of it.
One of the most effective ways to deal with the best enemy pikemen was for Knights to dismount, get beneath the pikes and begin hacking. The heavily armoured men at arms would heavily outclass the pikemen, providing they didn't get stabbed to pieces.
Fair enough, some people are overzealous about such things.
PURGE THE KATANA
once you've been knocked over a guy with a dagger would be all that would be needed to do you in.
Ah Agincourt. Fun times.
Well, it's impossible to fight with a plate armor on foot. That's why knights had badass horses, and were killed by peasants with polearms if they fell of it.
More to do with falling off your horse generally killing you regardless. Momentum meets hard ground.
You're talking about Agincourt, and nobody's quite sure how that went down. One story is that the arrows themselves killed the dudes, others say that bodkin arrows couldn't penetrate steel plate armor. But no, either way it isn't proof that plate armor was impossible to maneuver in. Agincourt was fought on a very muddy field after a big rain, which is not the same as a fight on firm ground. Horses got mired, dudes got mired, while people in light or no armor could maneuver more easily. It's an outlier, is what I'm saying, not something you should base a conclusion about plate armor on.
The French fought chivalrously. The English fought with peasants. They would drag the Knight down, fighting 3 to 1 and begin stabbing through visors and gaps.
and jumping directly into saddles in full plate
Who broke mah hoerse D: