So far I've played as the Germans, English and Danes managing victory with each. I'm temped to try a muslim faction like the Turks perhaps, or Egyptians but I'm wondering who the hardest faction to win with is?

I've just started a High era campaign as the Russians, dealing with the Golden Horde and their starting position should make it a solid challenge, but I'm confident my Boyar's, Steppe Cavalry and Druhzina Cavalry (dismounted into Feudal Footknights for my base infantry) will be enough to secure the wins.

I'm playing on expert difficulty and while this will prove a challenge I'm sure, I'm certain I'll prevail.

what have you veterans found? Who is the hardest to win with?