I assume you use GriefPB, otherwise you wouldn't be talking about pvp. With Grief phase blade, you don't need IAS. Smite always hits so you don't need AR, obviously. FHR is sorta..meh since smite is uninterruptible. Don't ignore it though, you should get some. Crushing blow isn't nearly as good is pvp as in pvm.
So in a nutshell, with Grief phase blade:
PvM: Max resists, 50+ CB, lifetap, some source of OW, some DR
PvP: Max resists with an overstack (not counting Anya's), Max (or close) DR, some source of OW, lifetap if you are a BM'ing asshat, and Tele