it needs to be both damage dealer and the guy stoping the squishes getting stabbed, plus getting people to dual you is cinematic and thus cool.
The optimization crowd I hang out with on Discord will often say things like Fighters in 4e actually are some very good strikers with the caveat that it takes building towards that, where as if you want an
easy striker you build the ranger, but yes a dm could have monsters frequently ignore the mark it does not have to be constantly to up the anti quite a bit.
I am the flexible flavor guy and think a ranger, or actually the entire martial power source are "fighters" I built Zena who is in story Warrior Princess. (sounds like Warlord with Gender specifics) as that very acrobatic ranger who used the Chakram as her offhand weapon (throwing build). Warlords are called "off defenders".
How does one build Aragorn => I build a Warlord and give him nature skill one way or another and high enough intelligence that hide is the perfect armor but so is that other shiny metal stuff. Another might hybrid Ranger with Fighter or Warlord. That Distracting the enemy from attacking the hobbits is very useful for making him feel like the character in the books.... less so being able to kill something big, that was Legolas trick also not as much Gimli's.
When I build a Samurai I might use a Hide wearing ranger with Two Sword aka Miyamoto Musashi or a fighter using scale or a monk with cloth armor ie there is no one right way. The ranger or Warlord also enables the archery which is a historical difference between a Knight and a Samurai. Mulan being a Warlord build. Knights are legendarily not archers.
Knights very much the fighter in some ways, yet nature skill also was very much described as very important to knights including hunting, animal handling (falconry,dogs,horses) and horsemanship the purview of the noble (peasants were not allowed to hunt... see robinhood). And speaking of noblemen, A rogue can be a Nobleman with a rapier ... not a cat burglar.
That said I kind of like the structure of the 5e fighter. (credit where due it actually feels like a mashup between the 2e warrior lord/fighter with a really large helping of the way Book of 9 swords worked). It lacks the stylishness of the Bo9S and the poetry of any of the 4e classes with boring maneuvers which are all 3rd level appropriate with zero hint of the 4e fighters ability to mow down minions... and so on very unsatisfactory to me.