Affliction Locks are topping the damage meters since DoTs now scale a lot better. Typically, the damage meters are looking like: Affliction Lock, Mage, Destro Lock, Hunter. Affliction Locks can only achieve this with 100% DoT uptime.
I am quite stoked that Affliction has gotten the damage buffs it needed. The spell rotations have said to be the most complex in game. At Blizzcon it was stated that this would be looked at though.
However, Demo and Destro have been pounded into the ground in terms of damage output. Locks still have a few worthless talent points that have made it through a few reviews and now 2 expansions. Shadowburn and Conflag are scaling even worse as they do not get modifiers from talents.