Here is the data. Keep in mind that lots of things are estimates and things are very likely rounded at wrong places. Anyways, this should give you some basic idea what’s going on.
Too long, didn’t check: Lower your level is, more powerful signets, banners and might stacks become.
First section shows scaling and attribute caps for every level.
Second section shows scaling for an individual might stack using a formula from wiki. These values are upscaled to level 80 so you can compare them to the usual 35 power per might stack. Also their relative strength is provided. For example might stacks are about 70% more effective in AC exp than in Arah.
Third section shows scaled power and total power with might stacks. This is needed for later section.
Fourth section shows how signets and banners scale. It shows their attribute per level based on formula from wiki. Like with might stacks, these values are upscaled to 80 and their relative strength is provided. For example in AC exp, signets give 66% more attributes and banners give 156% more attributes.
Fifth section shows how effective Signet of Might actually is. In my scenario, Signet of Might gives 7.3% more damage with 0 might stacks and 5.4% more damage with 25 might stacks at level 80. For example in AC exp, same values are 12.5% and 7.7% which means Signet of Might is about 50% more effective.
Sixth section shows how critical chance scales. Critical chance gained from precision is calculated with scaled precision and using a formula from wiki. Then this is compared to level 80 value. For example precision gives 6% more critical chance in AC exp. Also critical chance with base chance and fury is provided.
Seventh section shows effect of Signet of Fury. For example in AC exp, Signet of Fury gives 75% more critical chance compared to level 80 (14.9% vs. 8.5%).
And what’s the use for all of this? No idea.
