I've spent some time looking, but either my google-fu is completely inept or nobody has really put together a real list since 6.0.3. I can find vague guesses that seem to be based on speculation, plenty of people saying they guess that trolls and orcs are strong, but nothing mathematically concrete.
First, let me be absolutely clear about one thing before I get a slew of answers encouraging me to play whatever race I want to because the racials are all really close; I honestly don't care what my race looks like. I'd play as a slime monster if it would yield me a .1% dps increase.
All I want to know is if anyone has a solid, mathematically concrete list detailing how strong all the racial bonuses are as a pure DPS increase, with source if possible. I have a feeling that the improved food buff from Pandaren will win out, but I'd like to see the evidence if it exists.
If it's of any consequence, I play subtelty spec.
Thanks in advance for any help rendered.