Tips for the Berserker King and Valkyrie Queen?

I plan soon to face King Hrólf Kraki and Gná before 100% completing my current play through. What pommels for the Leviathan Axe, Blades of Chaos and Draupnir Spear, armour, runic attacks and enchantments (including which realm enchantment) on the Amulet of Yggdrasil should I use when I face each of them individually?