I kept trying to figure out why AMR for TBC was suggesting + Defense Enchant to Bracers as well as gemming for +Defense > for TBC Classic for BiS Protection Warrior. It does not seem to be calculating Defense / Defense Rating Correctly.
AMR says in my current gear I have only 131 Defense (but 263 Rating with +5.24% to Dodge/Block/Parry) - When in Game I have 465 Defense (370+95) at 227 Defense Rating with +4.60% to Dodge/Block/Parry.
I am a Troll Protection Warrior. I believe even my base Defense is 370, WAY higher than 152 Defense.
AMR shows my Defense WAY too low and my rating a little too high.