Personally only tried affli/resto so far, at 2100 and I assume that's the best combo. Just have fun losing to ALL warrior teams no matter if they mouseclick and backpeddle. It's kinda balanced when I faceroll them on my crap geared pve/pvp geared rogue and partner specs elemental but have zero chance on BiS PvP gear lock + resto sham.
Corruption
Juke berserker rage with a fear
Remaining dots
Death Coil if they get close to you, but try to save this for later
Shaman should be dropping snares
berserker rage is off, fearx2 unless he's trinketed already. If the partner can dispel, silence with your pet simultaneously.
Nuke. Fear the healer as silence comes off cooldown, as the warrior only has shield wall left at this point. Hex comes into play on the healer at this point.
Shaman should focus on interrupting heals and helping with a lightning bolt or earth shock for burst between heals. +Armor on heals is a great talent for a warlock team. (I forget if the air interrupt shares a cooldown with shocks).
Hardest comp to counter as Aff/Sham, but its doable if you play absolutely perfectly.