In my offspec as a tank, I'm currently DWing Black Icicles as Frost.
However, I'm Runeforging both weapons with Nerubian Carapace. Would I be better going for more DPS with Fallen Crusaders on them? What does Defense over the cap do?
My stats with HoW only are (with Fallen Crusader in brackets):
Def also adds chance to be missed, along with dodge and parry.
If you feel comfortable with your current stats, go FC/RI or FC/Swordbreaking, or SB/SB. Judging by the stats you posted, I'd go FC/Nerubian or SB/Nerubian