Hi again,
I was searching on the wow-armory my new possible items, and since we have this nice little place (class discussions) here, I would like to make these question public, to see your opinion too...
My current equipped item is:
Shawl of Shifting Probabilities
Binds when picked up
Back
93 Armor
+18 Stamina
+16 Intellect
(+20 Spell Penetration Enchant)
Requires Level 70
Equip: Improves spell critical strike rating by 22
Equip: Increases damage and healing done by magical spells and effects by up to 21
And I found 2 possible replacements for it:

Shadow-Cloak of Dalaran
Binds when picked up
Back
97 Armor
+19 Stamina
+18 Intellect
Requires Level 70
Equip: Increases damage and healing done by magical spells and effects by up to 36
[I would earn +4 armor +1 stami +2int +15spell dmg; and lose 22 spell crit rating]

Ruby Drape of the Mysticant
Binds when picked up
Back
105 Armor
+22 Stamina
+21 Intellect
Requires Level 70
Equip: Improves spell hit rating by 18
Equip: Increases damage and healing done by magical spells and effects by up to 30
[I would earn +12 armor +4 stami +6 int +9 spell dmg +18 spell hit rating; and lose 22 spell crit rating]
Another two sets of items:

Gloves of Malorne vs. Gladiator's Wyrmhide Gloves

Antlers of Malorne vs. Gladiator's Wyrmhide Helm
Thx for reading, I'm waiting some comments, opinions
Have a nice day, and GL in raiding!!!