I know there's a thread about "what is best" but this thread is about what people will actually use. Idea found on the Warlock forum
Spec
Assassination
Talents
Elaborate Planning
Nightstalker
Vigor
Cheat Death
Iron Wire
Toxic Blade
Hidden Blades
PvP talents
Flying Daggers
System Shock
Honor Among Thieves
Legendaries
Mantle of the Master Assassin
The Dreadlord's Deceit
Solo or Group?
Group