I assume you play affliction since you have 16 dots wich is a awsome spec wich i prefer for my own lock but when it comes to meele your short. If your warlocks is under 7k in health i can most likley kill 4 of them on my warrior with blues and a few S1 epics if i have the right cooldowns (no not the 30 min cooldowns) Deathwish,sweepingstrikes,mortalstrike then a worldwind will do so much damage and unless your warlocks and priests are undead a int shout will completly destroy you. Ofc i will die but i will hamper 5 opposite chars and it will make us win.

Untill your well geared a warrior or rogue + a healer will destroy you.

Sounds like you dont know much about the warlock class if you use 16 pure damage dots (no offence) :P

Against healers bind theese curses, Curse of elements (increases fire,shadow,frost and arcane damage with 10%), Curse of tounges(increase casting speed with 60%, This is a paladin,shaman killer.) Curse of Exaustion (err bad spelling there, anyway it decreases the enemy speed and even thought a druid can shapshift it off he still have to use time on it)

Its not bad against druids either since he cant decurse them all he wont have the time and cyclone got a cast time.

To kill the druid dot him up and use felhunters, you might aswell use auto devour since you already have a hard time. They will eat all his hots but even if he spams 1 lifebloom your dots should do more damage.

You got 4 spellocks try to get him in a long silence run. First get a fear on him then a spellock cycle!

What you can do is to spec sl/sl and your locks will last forever but aslong as your priest doesnt wear pvp gear he will be the weakest link in your group. Btw i see no need to bind all howls of terrors to 1 button why do you want to blow them all at once?

I personally dont have multibox experiance with locks and barley shamans but warlocks always been pointed out as a easy mode class wich they can be with SL/SL and 300 resillience but try aff or destruction and the tables turns. Have you ever tried to play one of your locks singel? maybe you should try to get the hang of it because starting with 4 sounds to me like it will be messy!