https://en.m.wikipedia.org/wiki/Yari#Variations_of_yari_shafts
The nagae yari could be 15-21feet in length. So of course there is no way to depict this.
Attached are various kinds of shorter Japanese polearms. Note the length of the nagamaki's hilt and blade which makes the nagamaki samurai able to apply quite a bit more leverage and have a significant ability to stay alive. A no dachi is a large long and robust blade. Those two working together would be fearsome and with other soldiers keeping out their range.
Each weapon has an optimal battlefield use, but there is no way to give pluses and minuses like that but this would be ideal. The nagamaki is a stabbing polearm and strong. This was a weapon of choice whereas a katana was a personal sidearm ie a back up weapon as was the wakizashi (short sword). Katanas while very sharp, they break and the edges get brittle so not ideal at all against armor. The nagamaki has a strong spine and holds up.
There are stories where the early samurai law enfrcement used a jutte which is like a sai but only has one curved hook, and he would bravely try to get a ronin to strike with his katana and then catch the katana in that hooked curved side and then turn it with a SNAP and some were stunned an even thrown and weapons broke.
Roman legionaires were lethal with short swords. In a house where a long sword might snag in a ceiling or wall panel or a wall, then the samurai using a wakizashi had an advantage. If inside a castle, no matter the size, then one cannot just swing some lengthy weapon around very well.
A naginata is a slicing weapon that is cruelly excellent versus a mounted warrior by attacking the horse.
A yari used by a skilled swift equestrain is an excellent weapon but unwieldy if the horseman is stalled in a cluster where he is pulled down and stomped on.