In Fire and Ice, the regime adopted the fief system of family enfeoffment and autonomy. So in terms of equipment style, each family has its own style. In fact, there is no generation difference in the overall strength of equipment between the western army and the northern army, but the different styles have caused readers to have an illusion that one army seems to be better equipped after one-sided understanding. Author Martin also mentioned that the clothing of the western army is the style of the Hundred Years' War, while the clothing of the northern army is very Norman. It's just that the cultural and folk differences between Northwest China and China have created different styles. One-sided readers even said: the northern army infantry is a group of farmers with sticks. This ridiculous and stupid statement.
Stark infantry in the north
Stark archer.
Knight Lannister dismounted from the west.
Western knight
Soldiers and hounds in Ramsbotham