This is my own opinion.
From a warlocks perspective I can tell you that my biggest issue is that those new sets don't feel like they should belong to warlocks. Tiers loose their class identity and its getting worse and worse. If you look at previous tiers you had:
tier1 and 2 - both great sets, when you see them you immidiately know that they belong to a warlock, these are iconic, although a little bit cartoony by todays standards, but I still love them
tier 3 - going to talk about it at tier 7
tier 4, 5 and 6 - each one of them is great, definitely warlock themed, 2 of those sets have extra features - tier 4 has this dark vortex and tier 6 wings that pop out, tier 5 has none of that but is still really badass, I LOVE all of the TBC warlock tiers
tier 7 - is ok, never been among my favourites tho
tier 8 - it's great, one of the coolest warlock tiers
This is where it starts going downhill
tier 9 - that whole tier was a joke for any class
tier 10 - a really cool looking set, but it doesn't feel like it should belong to a warlock, it's more of a necromancer or death cultist set
tier 11 - a good set, actualy well fitting the warlock class
tier 12 - what makes it a warlock set? you could give it to a mage and it would fit them just as well
tier 13 - an ok set, but its old god themed, old gods dont seem to have much to do with warlocks right?
tier 14 - sha themed, why is it a warlock set again?
tier 15 - it's just bland, the gloves, robe and shoulders do not seem unique in any way,
look at both warlock and mage tier 15 sets, what makes the warlock set warlock and the mage set mage?
Warlocks don't have much to do with pandaria anyways, I don't understand the designers need to theme the classes sets by the continent (chinese style)
To recap my opinions: tiers 1,2,4,5,6,8 and 11 look like something that would belong to a warlock, everything else doesnt. Since tier 11, the first tier of cata, we haven't had a 'warlock' tier.
Edited by Hïdeyoshi on 03/07/2013 12:59 BST