If you can get some Hit rating, might as well, but don't actively seek it out. The only Hit rating I ever had on my gear was when I picked up the King's Defender which I don't use anymore. As stated, Warriors and Druids need it cause their threat is based on their ability to hit the target, while a lot of ours comes from the target hitting us (Holy Shield, Ret Aura, BoSanctuary).