Succubus - Soothing Kiss

[bonemage]

My experiences with the Voidwalker are very much like yours.  Unless I play with a very lazy combat routine (Corruption + Curse of Agony, wait for the Voidwalker to land two successful Torments, then spam wand shots), I will usually pull aggro from the Voidwalker very easily.
[right][snapback]66685[/snapback][/right]

My tactics are similar to this. I do use the wand and watch for torment to go off prior to cutting loose with direct damage. The damage starts out slowly and then takes a sharp increase at the end of a fight. Here's a typical battle.

I start pulling with immolate, near the end of the casting time, I send the voidwalker out to attack. The monster is hit prior to his arrival and starts closing the distance between us. The voidwalker grabs aggro as I hit with my two instant cast DoTs, Curse of Agony and Corruption. Then I watch for suffering to go off, then wand 3 or 4 times, then cast immolate again, then either wand until he's dead or fire off shadow bolts/searing pain to finish him faster. I throw in a drain life or two if I'm a bit low or have used life tap. If things get a bit out of hand, I can spam searing pain if and shadowburn to bring them down quickly.

Granted, this method is slower than fighting with an imp or succubus when taken as just this one battle vs. just one battle with either of those two other pets (I can't comment on the felhunter as I have summoned him once). What I like about this method and using the voidwalker is that I can set the pace for the fight and finish with full life and mana if I care to and be ready for the next fight. There is no downtime between fights unless things go poorly and I have to expend a lot of mana to kill the mob quickly. Over a period of time, I think the kill rate may be faster than other pets as I control the tempo and go from one fight to the next without slowing. Also, I have a lot of options if there are adds with the voidwalker as he can hold and survive hits from a couple of targets while I juggle a couple, or have him use suffering to hold a few targets while I use an AoE. I rarely ever sacrifice him, saving that for fleeing or for last ditch effort to bring them down with Hellfire. I also watch carefully on when torment goes off and use that to time when i can have him switch between adds. Over time with this one pet, I've come to have a very good idea of what I can and can't do at any point in the battle as far as grabbing aggro.

It may be of some note that I am destruction based. I have 5 talent points in affliction to get corruption to instant cast, 7 in demonology spent on demonic embrace(3), improved healthstone(2), improved voidwalker(2). The rest are in the destruction tree. If I had shadowfall, I don't think I could pass it up either, but a shadow bolt almost always grabs aggro and I save it for the end of the fight. If I've grown impatient and don't plan on fighting right after (such as when you're jumped on the road to somewhere) I'll fire off a couple of shadowbolts, searing pain or two, then shadowburn to finish them off but I'll have grabbed aggro by first or second bolt. I fight at 20 yards so I'm within shadowburn and especially drain life/mana range. This gives me a second or two prior to them getting to me.