Pangea would be my favourite nation for its story if they hadant made an unbelivible late era: New age and Carrion Woods can't mix. I don't think anyone did the rise of civiliseation in greek halfmen before.
Without Pangea I can't say, when writing this post I went through Ermor (pre death undead, wow!) Ulm (Love the idea of magic fearing people) Maragon (Christians, and none of the nice christian whitewashed revisionist history
)
For gameplay I'm currently a fan of Caleum. Mammoths and Cold 3!!