I hate to say it, but Cairne would win. Lothar's death showed that against a bigger for he's at a bit of a disadvantage.
If physic works nearly the same on Azeroth like in RL, I don't think that Tauren can be very agile. Their physique looks like they could easily overbalance.
Plainsrunnig is about running fast in a straight direction and even that isn't Canon, because it never made it's way to the final Game. Plainsrunnig doesn't make Tauren very agile.
No it doesn't. It means you kissed the right asses and were knighted. That is clearly not the case with Lothar though, he earned every bit of the title.
That's not what we are talking about though. PRIME Cairne is the strongest known Tauren. He is the best warrior the race has ever produced to our knowledge. Vs Lothar, one of the strongest warriors his race has ever produced. So when you have the best vs the best, at a certain point the racial element will come into play.
You know that todays knights don't are what Knights were in medieval? Knights were also a military unit and most of them were trained since their youth to become knights. A knight has to be educated in warfare and trained in arms and normaly, he receives a very good training, because he is expected to be a elite unite for his Lord when he is knighted as an adult.
Cairne grew up and led the Tauren through his adult life under attack by the Centaur, who are FAR faster and stronger than humans. So Lothar was knighted and proved himself in combat, Cairne grew up in combat and fought for his life until Thrall and the Horde saved his people.
Yeah, but that doesn't make Tauren Warfare or Martial Arts good. Humans use Weapons and Armors we know in Reallife, so we can asume that their Martial Arts do work really well, because that's the deal with things we know in Reality. Tauren on the other Hand...often they don't were any armor, their shields are sticks and some leader or clothe and the use this totems...
Very true.
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So you are projecting real life knights onto Warcraft knights. So how would those real life knights wielding shortswords and shields fare against a 12 foot monster swinging a tree trunk at them? Methinks not very well without overwhelming numbers.
The Knights in WoW look more like mounted Warriors in Plate Armor than Ian McKellen to me, so yeah.
And I think it would work very well. Because the Knight uses a combination of weapon and armor and probably also a fighting style that actually works. The Tauren on the other Hand, uses a absolute inpractical weapon and we don't even know if he uses it well technically.
Cairne doesn't even use the totem post-WoW, he uses the Runespear. A poleaxe isn't an impractical weapon when wielded by someone 12 feet tall. That fighting style that you are giving them that "actually works" works against humans and at the most Trolls that they have ran into. Then Orcs a few years later. In current WoW, Humans have only known about Tauren for what, 14 years? How are we supposed to know if they have developed a fighting style suitable for fighting Tauren.