2* Fuling Bezerker for me.

If they do thier berserk fit they can trash you through Bonemass and full Parry with a l3 Black iron shield. Miss you dodge-roll with these guys and your name is Hurt

Not seen a 2 * Seeker Soldier yet but Imagine they could be worse depending on if they have a boosted type attack like the Old bezerker seems to have.