Hit Rating on Armor
I did a couple quick filters on Wowhead.com
Hit Rating > 0 + Defense Rating > 0
Block Rating > 0 + Defense Rating > 0
WTB less Block Rating more Hit Rating pls Blizzard ;)
Add these to your shopping list:
Great filters.. here is a trinket one.
While this doesn't couple with defense, these definitely should be considered. In particular, Icon of Unyielding Courage is very accessible and the usage is simple amazing with only a 2 minute cooldown to boot.
(This is about to go off on a Threat tangant...)
In terms of Rings:
Crystal Band of Valor (15 hit) vs Protector's Mark of the Redemption (15 BV)
Using the threat formula:
9.5-11 Hit Rating(0.6-0.7%) = 22.1 Crit Rating(1%) = 29 block value = 49 AP (out of Fortifications).
That formula has Crystal Band of Valor not only out threating Protector's Mark of the Redemption, but also Dath'Remar's Ring of Defense (39 BV).
Other items with Hit Rating that are great candidates for use as part of a tanking set:
Enchanted Thorium Torque (wouldn't replace mine with anything until we kill Karathress)
Royal Cloak of Arathi Kings
Resounding Ring of Glory
Signet of the Fallen Defender - a little outdated now, but an absolutely amazing ring at level 60.
LOL you know I've had Royal Cloak of Arathi Kings for a couple months and used it for dpsing on Aran and it never clicked with me that "Hey! 31 Stamina and 16 Hit Rating would be great for tanking too!"
That being said, I like to swap between Illhoof's cloak, Devilshark and the Badge one.