"Do some research will ya. All three warlock specs are less than 5% apart." I highly suggest you go to http://stateofdps.com and actually do some of that research you claim to be so fond of. The Adjusted totals for 25-man Normals are: Affliction 25,957DPS; Destruction 25,156DPS; Demonology 22,512DPS(22,512/25,957= only 86.7% of the damage). For 25-man Heroics: Affliction 31,219DPS; Destruction 27,206DPS; Demonology 26,170DPS (26,170/31,219= only 83.8% of the damage). For 10-man Normals: Affliction 22,813DPS; Destruction 22,626DPS; Demonology 20,150DPS (20,150/22,813= only 88.3% of the damage). And finally, for 10-man Heroics: Affliction 23,791DPS; Destruction 21,990DPS; Demonology 21,025DPS (21,025/23,791= only 88.4% of the damage).

Demonology never even gets as high as 89% of Affliction's DPS, and it can be as low as 83.8%. That's between 11% and 16.2% less damage than Affliction, nowhere near the "less than 5% apart" you pulled out of thin air and pretended was "research". It's folks like you that make the old joke "80% of all statistics are just made up on the spot to try and impress people" funny.