My guild has killed Nefarion once, using an single target side/ AoE side strat. Since then, we've had several weeks of being unable to bring together enough DPS to keep both sides under control. If we stack one side with rogues and hunters, that side is under control but the other side becomes overrun. If we move enough DPS over to the AoE side to keep it under control, the single-target side becomes overrun.

I've heard of using a battleshouting tank to bring them all together for AoEing, and on the surface it seems much easier than the way we've been doing it. However, I likely wouldn't be able to convince the raid to try it without a video. Perhaps I'm just putting the wrong things into search engines, but I can't find a video of someone doing it that way. If anyone knows of such a video, I'd be much obliged if they would point me in the right direction.

You're an Alliance guild. This is how we do it.

Assign 3 Warlocks (2 at bare minimum) with full Intensity to your weakest color spawn side. To help, use this guide from easiest - hardest for 'locks to AOE:

Bronze (No tricks. Just straight up Hellfire.)
Green (Fairly easy. It's just a 1 second stun.)
Blue (Start with enough mana for 1 Hellfire and Lifetap for subsequent Hellfires.)
Black (Have a 4th Warlock, if available, spam Curse of Elements on each new spawn.)

A typical 5-man group in your raid should look like this:

Paladin (Devotion Aura)
Paladin (Concentration Aura)
Warlock
Warlock
Warlock

We include a 2-3 Hunters (traps & single target DPS) and 1-2 Mages spamming Blizzard (with Salvation up) on our side as well. Have a single tank ready for Chromatics. The Warlock AOE + Mage single target + the single Hunters will kill them within 5-10 seconds. Two healers should be enough to keep each Warlock alive, even through Black mobs (..and yes, we've AOE'd them in 3 successful kills).

As soon as the encounter begins, have each Warlock drink a Greater Stoneshield potion (make sure they bring a stack of 5 each) and begin Hellfiring. They need to drink another pot as soon as the first wears off. Usually however, phase 1 is almost over at this point.

--

On the melee side, we just put up two target windows.

MT: Chromatics (Usually, the Mages/Hunters handle these)
MT2: Adds (This is usually our best Rogue. We just single target assist them down.)

..and on melee side, they also use a couple of Mages I believe to spam Blizzard. Overall, I would say our raid splits up 15ish on the Warlock side and 25ish on the melee side.

We just split all melee on one side and the AoE/hunters on the other side. By the end of ph 1 the melee side is deep inside their tunnel instagibbing spawns as they come. The caster side has 3 warriors that let a few drakonids spawn (4-5) and make some aggro moves at them. Then the AoE starts until it's called off. The hunters deal with the chroms and the leftovers. The important part is to not let things roam away. Keep traps up all the time and piercing howl, make sure that no draks runs away, intercept and get them back again. This works wonders for us.

If you have a raid of average players, then the battleshout strategy will be FAR easier than either the ae or single target.

For the life of me I can't understand why more guilds don't single target both sides. Positioning wise its the same as melee/aoe strat, just have the warlocks and mages follow an assist and blow them up. Tends to be less mobs running around, and is far more forgiving on mistakes than aoe.

He asked for a picture of the battleshout strat.

Yes, we focus-fire both sides and have for almost a year now, and it's easy. However if you have very low DPS and players who have a tough time staying focused and assisting, or poor MAs to acquire the targets properly, it can get very messy in a hurry. 1-2 get loose and run over to healers on the other side, for example, and you get overrun. The OP didn't ask for everyone to list their favorite Nef strats. He asked for a video of the battle shout strat in action. I'd actually never seen it either, so it was fairly interesting. Looks trivially easy. It's pretty much identical to the original BoW strat some alliance guilds used back when it generated threat. Same net effect. And yeah, this is pretty foolproof even if no one's ever done the fight before. Particularly for alliance if you can BoS everyone but the shouting tank.

Anyway, I think that's about it. Oh, and burninator (such an original name), fill out your profile.