Hit Is only one stat. Others are mastery, expertise, haste, crit, spirit. With the addition of resil and the removal of reforgable stats, the difference in performance is in fact noticeable. Unless you're using crafted pvp off-piece for some starter pve, there is absolutely no reason for you to run around with more than 5 pieces of pvp gear. And even so I reccomend not using pvp gear. I hit 85 and got 350 Ilvl with purely pve gear, I did more damage than 370+ Ilvl mostly pvp geared damage dealers.
You also should not go into pvp with mainly pve gear when the full crafted set comes out. Want to farm honor? Get crafted set.

