What are the weapon choices for each spec? Subtlety was huge on daggers before class changes.
Is there any real 'right' weapons for each spec? Could this be explained?
Assassination: Dual wielding daggers is your only option. A necessity for Mutilate to work.
Combat: 2.6 speed main-hand weapon, for optimum Sinister Strike/Eviscerate damage. Off-hand can either be a dagger, for increased poison application, or another 2.6 speed weapon, for a better Killing Spree. The difference between the two is negligible really, so either one works.
Subtlety: Dual wielding daggers. You need a dagger in the main hand for Backstab to be available. A slow off-hand nets you no benefits, but reduces poison application, and is therefore not desirable.