Signet of Fury
Speaking for just this warrior, I have the trait which gives adrenaline every time your hit. 90% of the time, adrenaline isn’t the problem. Instead it’s waiting for my F1 abilities to come off cooldown. I also play a support build so will always want to have slots which help my group as much as they help me, so I tend to stay away from signets unless I’m solo. I’ll use signet of rage solo, then switch to war banner in a group, non elites slots as shouts, etc…
Also depending on weapon choices, you may not need a full adrenaline bar. For example, If you use sword main hand, the damage done with your F1 doesn’t increase, nor does the amount of bleeds you stack. Only the root duration is affected by what adrenaline level you use, so again, I’m never waiting for my bar to increase more, I’m usually waiting for my burst to cooldown.
I use signet of Fury with my hammer build. I don’t see a use for it on any other builds.
With hammer it is great though. Being able to start every fight with a ranged aoe stun/smash is just too good not to have! (Instead of the trait that requires you to be hit, so you can’t start off with a tier 3 adrenal smash)