I would be interested in seeing the data about which armies are winning tournaments.
Look at
http://www.slithdata.net/files/fog/rankings.html
All data are compiled here, you can study successful armies, which played them against which other armies etc...
As a comp player, I played enough different armies to assure you that Kn aren't the super troops
I'm more annoyed with Roman auxiliaries en 4's (even if it's historical) or "speedy" LF.
Cat's are good in their period, as soon historically Kn reign began, they followed the dinosaurs in the void
If Knights only get one melee dice cataphracts might even start to appear in open competitions as well!
It's certainly not a point of importance for authors
I still don't know the answer!
Short answer : because from the top down view that works!
Muslin CV manoeuvres to avoid a frontal contact, Kn charge in the glory on thin line and they win or lose big!
