Damoloces is right, 70 pvp is MUCH different than pre 70. You'll have much better gear, much better skills, more resilience, better specs, etc. Believe it or not, warlocks DO take skills to win. /gasp! The common misconception about locks is FEAR dot dot FEAR shadowbolt DEATHCOIL shadowbolt WIN! Trust me, that's not how it happens. I'll admit 1v1 warlocks are OP, but if you make it so they're not OP in 1v1 they'll suck in anything more.
Note that ONLY demonology warlocks will have the high resist chance. If you're dueling someone, look for soul link. If they have that, they have the high resist chance. If they don't, pew pew. The trick for mages to beat me (yes, mages can beat me) is polymorph. In duels I usually have my imp out because I don't want to waste shards, but we'll assume I have my felhunter. Polymorph me right off the bat, if I have devour magic on auto (which I usually do against mages), I'll have to trinket out of it. This next part depends on if I know your spec, but if I don't, it's alot easier. Let's say you're fire. Start out casting polymorph. I'll try to silence it usually, but if I don't start casting frostbolt. I'll definately silence that if I'm still polyed. Then wait the three seconds, repoly if you need to, then cast fireball. From then on try to keep me stunned/disoriented as much as possible. Generally after fireball cast fireblast while running up to me, then blast wave (at 70 you'll have done around 2k-3k damage assuming no crits), dragon's breath, and whatever you can pull off before I deathcoil (or instant howl of terror since I'm affliction). After that I'll try to put dots on, so make sure you have that counterspell macro. Silence ONLY SHADOW! It doesn't matter what spec I am, silence shadow, so I can't fear you. Try to silence shadow early on so you can use it later. Personally I'll try to dot you and then drain life, this would be when you silence. Wait for the felhunter silence (every 24 seconds it becomes available), if you think enough time has gone by try to use only instant casts or off-spec spells. You'll do less damage but I'll be waiting for you to cast a fireball. If you think you're skilled enough start casting fireball and then move so I don't silence you.
Fighting a warlock depends on gear and starting strategy. If you can keep me disabled for the first half of the fight, you've got a good lead. Make sure you can trinket out of the fear (my casting fear, don't bother trinketing out of howl of terror or death coil). If you're undead do whatever the hell you want, you've got it good against warlocks. Obviouily you'll have different strategies against different pets, so plan ahead. Just going in there crazy won't work; you need to have a basic strategy (not the entire fight though, you need to be flexible).
Edited, Oct 14th 2007 4:34pm by Miscelaneous