Articulo34 said:Don´t forget Gunders Lodge. Just fill it with archers and watch the show if the AI is stupid enough to assault it with you inside.
EDIT: And it is quite easy to take if it´s defended by Fierdsvain troops.
It was first fief in my last game and withstood a 1k fierd marshal with ease and since that has gotten a mention I will include some other good ones
Talon Castle
Hrolfson Castle
Mobray Castle
Haringoth Castle
Seven Cross Keep