I have both a 51 Frost mage with water elemental and a pvp warrior.
The reason so many people say, "nerf 'locks," is the DOTs and Fear.
Scenario 1
Warrior vs Warlock (Warrior is pvp 39 bracket, so no Mortal Strike, Warlock is Affliction)
Warrior Charges, Bloodlust, Hamstring, then tries to Slam, Warlock DOTs, tries to Fear, Warrior interrupts with Berzerker Rage, breaks fear, white hit, Slam, Whirlwind, Warlock dies. If the Warlock was able to cast enough spells, Warrior dies soon after from DOTs, if not, he doesn't.
This is with a PVP spec Warrior, 39 bracket, Arms/Fury, with a really slow 2-hander.
Scenario 2
Warrior vs Warlock (Warrior is Arms Leveling spec / any non pvp spec OR Berzerker Rage is on cooldown and warrior doesn't have PVP trinket, Warlock is Affliction / anything else)
Warrior Charges, Bloodlust, gets feared, DOTed, Shadow Bolted, almost dead, fear ends, gets refeared / DOTed, Warlock walks away, Warrior dies 10 seconds later.
A skilled PVP Warrior will often destroy a Warlock, but the average warrior can easily be killed by even a poor warlock, that's where the complaint arises, in that a warrior has to be good to kill a 'lock, otherwise they have no chance.
A non PVP warrior has a better chance against a mage than a warlock, at least with spell reflect.
From the Mage perspective, I'm full frost, at 51 I have about +150 spell damage, NOT PVP spec, and 1300 HP. I've been killed (Ice Block on cooldown) by a 'lock riding by in world PVP, dismounts, DOTs 3 times, SB, walks away, remounts, and I die 20 seconds later.
As a mage, I can kill a warlock, as long as my abilities aren't on cooldown. If they are, it would be virtually impossible to kill a warlock, with or without a pet.
This is why mages cry, "Nerf 'Locks." As the only way for a mage to kill one is by blowing cooldowns. (Arcane/Fire? Arcane Power(3min, +30% damage) Presence of Mind(3min, next cast instant) Pyroblast will destry a warlock, but again, needs cooldowns, just like Rogues Cloak of SKILL)
Don't forget Deathcoil either, it ruins all other classes day.
"I almost killed him!"
Deathcoil
Re-DOT, other class now dies.
--Edit-added part about Deathcoil, sorry about the grammar, long day at work.
Edited, Aug 17th 2007 2:34:52am by Akuhime