Bellow  

Before we got the bellow line, holding aggro, even with the right weapons was a LOT harder. Sure it could be better, but it used to be a lot worse.

My mini-guide on holding aggro:
(not a flame or lecture, just my opinions based on trying a ton of stuff over 5 years and the many characters I've had/deleted/remade)

The question is whether you are trying to be the main DPS or the main aggro, because over time I have discovered that because of the way Sony has things balanced, the two aren't usually the same. This might not be the way we wish it was, but it's reality. In general, I have found that you can either have triple digit hit numbers or you can generate tons of aggro, but rarely both (unless you get the really high end weapons *drool*).

I've experimented a lot on holding aggro with slowers, dots, and paladins/sks trying to pull mobs off me when playing a warrior. The combination that I found works best for me is that I pull using the Bellow line (OMG, not a bow!?! Nope. Not anymore.) and I use two FAST (<20 delay) procing weapons that have stun components to the spell procs.

Some spell procs say stun in the name (i.e., Planar Stun) others are spells from other classes which have one part that is a stun, like a wizzy nuke that when you look it up says "179 dd + stun." (Stuns were put on many nukes to break roots so wizards wouldn't own all mobs solo.) Look up the spell proc on a potential weapon to see if the proc has a stun portion.

Stuns = glue. In all of my trials, stuns generate more aggro even when they are a tiny part of another spell AND most importantly even if they are resisted. This is why paladins are able to hold aggro so easily if they chain up their stuns. Our advantage is bellow multiplies the aggro we generate.

I always try to keep my dex maxed (for max procs) and I am also taunting non-stop. Even though taunt fails at least half the time while bellow is active, it seems to succeed more often if they turn right before the taunt, so I make it a habit. I also keep slam under my finger tip and use it even on mobs that aren't casters. It stuns them briefly and I take a little less damage as a result. It is also possible that it is generating a little aggro (which is multiplied by bellow), but I haven't done comparisons specifically on this.

I also have a haste item (obviously a must!) and try to keep spell haste on at all times. When the effect of bellow wears off, I often fire it again, depending on how close the mob is to dead. It has an aggro mulitplier, so it boosts aggro of all your hits. The fast hits combined with the aggro boost really generates aggro and there is no telling when a dot will suddenly bring the group necro to the top of the hate list if you let bellow fade. Also, after pulling with bellow I will sometimes shoot a bow at the mob as it is coming in just to give me an additional head start on aggro. The damage from the bow is multiplied by the bellow as well.

"But I don't want to be a blender! I want to be a sledgehammer!"

Most warriors I know hate using the lower damage faster weapons because they don't get to see those big sexy triple digit damage numbers, but most of those warriors also can't hold aggro and whine about it constantly. I'm sorry, but it's completely a pride thing and I can honestly say I originally started out playing my previous warrior the same way and eventually deleted it in frustration over losing aggro when my level 20 paladin could hold aggro better. Many warriors feel that if they aren't doing triple digits per swing, they are less tough or something. What it comes down to is they are trading away aggro for pretty damage numbers.

Granted there are some really high end weapons that are high damage and fast too. Split Blade of Destruction comes to mind. (*drool*) Heck, if you are not the main aggro, then you really should pull out the high damage low aggro big hitting weapons, but when I'm main aggro, I pull out the smaller faster stun proc weapons and the mobs stick like glue.

As an example, I just had a pally chain stunning to try to pull aggro off me when hunting two days ago and the most she managed to do was to turn the mob briefly before my next taunt or quad burst. The shaman I hunt with starts the slow cast on my very first hits when the pulled mob arrives. By the time the spell has finished casting, I have usually hit the mob at least 15-20 times with the aggro boost of bellow on. The mob doesn't move. If I were using a big hitting 2hs I would have hit it 3-5 times while the slow spell was casting and I would then be chasing the mob who would be chasing the shaman.

When I tank, I define my role as being able to hold the mob on me so that others can safely do most of the damage, but also as being able to better handle the damage the mob is dispensing (AC/HP, another issue). To me this is the definition of tanking. By holding the aggro well, and minimizing the damage that might be inflicted on others by taking it all myself, the higher DPS classes are able to perform their roles better and the whole group wins.

For me, the high speed stun proc weapons, bellow-line, and taunt combination allows me to do this consistently. Before, it was a lot harder. I hope this information helps somebody.