Tier 16's king of all DPS are undoubtedly the Warlocks. If you and your guild find your raid hurting on DPS you should be looking to filling your raid with more Warlocks. Here is a chart with the top DPS across every spec, Warlocks have a huge presence at 60%, while the next highest is Windwalker Monks at 9%.
Comparing last tier for ranged DPS Fire Mages were the kings, and not far behind were Warlocks. This tier there has been a major shift. It wouldn't be fair to say mages are out, as they are still the 2nd top ranged DPS. However they are still behind both Affliction and Destruction Warlocks. Bottoming this tier out in a similar fashion again are Marksmanship Hunters.
And if you thought Warlocks had a dominating presence for all DPS, it's even worse for their specific ranged DPS counterparts.
Edited from post below:
The presence is the percentage of all the top dps in the world using numbers from DPS Rankings. It takes every fight they have and averages out the DPS. These are factual numbers from roughly 500,000+ parses of data.
Any classes not shown in it is because they are literally too low in comparison with the top classes. It is taking the top 100 to give a nice clean percentage. Because warlocks are at 60% it doesn't mean they will do 60% of your raids dmg, it means that if you took the top 1000 best DPSers in the world for your raid, roughly 600 of them would in fact be Warlocks.
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