brodarus, you can't have the FG in the 30's.
@OP - Are you using your succubus or your voidwalker? If you're using your succubus, get the warrior in combat with a non-damage curse (probably weakness, since I forget when you get Elements) so you can seduce him. Unfortunately, Soothing Kiss doesn't get its real usefulness until its last rank, so that and Lash of Pain should be off autocast (Seduction is rather expensive mana-wise).
Warriors aren't immune to Fear in berserker stance, though; only due to Death Wish and Berserker Rage. One thing you might do is find a warrior friend and duel him to see what his buffs look like. General rule of thumb is as long as he has red hands, you probably won't be able to do much to him in the way of cc. However, once their cooldowns are up, they are as bad off as druids with a trinket down when it comes to Fear.
If you're using your voidwalker, take Torment and Suffering off of autocast; Torment is worthless in PvP, and Suffering isn't useful until its last rank. You're not high enough for Soul Link yet (level 40), so this pet probably isn't a good option in lieu of the succubus' utility.
Affliction will probably be the best bet for you, but Warlocks really don't shine until the 40s, when you have Howl of Terror and Death Coil, and can spec for Dark Pact and instant Howl. Affliction is also the easiest way to level, if you plan to continue to level your warlock.
Edited, Sep 13th 2008 4:20am by wingsofscion