In my opinion HRE and Danes have many armored troops. It is very incorrect historically.
It was said that the game is balanced in multi, but I don't see that really. When I had compared polish troops and HRE troops I saw that HRE has armored ground troops and good heavy cavalry (polish side has it also). Well the armored heavy ground troops weren't in such numbers on the HRE's side and HRE wasn't such powerful faction, because after the XII it was weak and divided in many small kingdoms (the game take place from X to XVI century).
I wait for other factions to see if other nations have such good units.