So which rogue spec is better for PvP? Both arena and BGs

I played only Assassination so far, it feels simple, maintain dots, use aoe to spread, one 1 min and one 2 min dps cooldown plus Shiv

For Sub, I feel I need to setup bars in a bit more complicated manner due to Shadowdance

Having 2 small dps cooldown (Secret Tech and Shadowdance) means I have to look more at my bar

Haven't touched Outlaw