Nice post, Dof. I just got Quarrel at Adept III myself
I would just like to add some related advice that you gave me before, which was that AE attacks are much more important than they might seem. Most of the game, you only have one, though in the upper levels you get the very powerful Savage Blows.
The reason is that Bruisers have very poor (possibly the worst) group and multi-encounter aggro control. While you have aggro locked down solidly on the main target, the healer is still getting aggro from the other mobs in the encounter, and sometimes that long-refresh group taunt isn't going to do it. On multi-encounter pulls, forget about it. When the situation goes south and more than one encounter is pulled, hitting your AE attacks will often provide enough DPS to keep them on you instead of your poor healer. Also, it has a chance to proc your hate effect (in this post, Quarrel). Because you have to actually make contact to get that aggro, a lot of times it's worth thinking about switching into offensive/half-and-half when you do this.
This aggro makes it worth giving consideration to tanking EXP groups in the half-and-half stance, or even offensive stance. If healing is not an issue, a Bruiser is capable of providing very high DPS and thus allowing others to DPS more as well.