Has to be Scotland because nothing is more heroic than a bunch of guys in skirts, in the cold fighting a better trained and equipped warmachine ( England )
remember this if for your FREEDOM MEN!!! lol
take Berwic castle fill it with archers ( Scottish ones ) and you cant lose i had 120 archers and held against a 340 strong English army with only 6 losses :D
one more thing could wales have less castles because they are too close and England need more because they are to far from each outher