Accuracy and skill speed are a serious problem when it comes to itemization for end game, especially when their effectiveness or lack thereof completely dictate what pieces of equipment you need to pick up first.

To start out, accuracy is of such high importance that it actually trumps better protection for a tank in many cases because without hitting a particular "cap" the tank in question just cannot hold aggro. One solution to this would be to introduce the concept of "glancing blows", which are near misses that do less damage, but still generate aggro. This would soften the accuracy requirement for raiding as tanks and damage dealers while keeping accuracy a viable damage booster.

Skill speed would take much less changes to fix. Just lower its overall effectiveness on the global cool down and make it affect attack speed as well. In its current form, skill speed is designed to sabotage a player by decreasing the down time between the use of special attacks, but does nothing to actually increase the amount of damage the player does per attack. By increasing the rate at which the player does white damage (and lowering its effectiveness on the global cool down to compensate), the disadvantage of skill speed can be off-set without changing its intended purpose.

Please consider making changes to the above stats so that players can feel free to choose armor based more on their aesthetic quality than their impact on weekly raids. Nothing is more depressing than wanting to buy up a suit of awesome looking armor, but being forced to buy a pair of short shorts just to keep up with your friends.