Originally Posted by Felixg91
melee power stances are really great too.
One handed melee attack costs 3AP.
For 1AP plus which is 33% you get
--- >25% more damage and 10less accuracy.

Two handed weapons costs 4 AP
For 1AP plus which is 25% you get
---> 25% more damage and 10 less accuracy
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As you can see, when power stance used then you get worst result per AP then without.
Power stance might be handy only in rare case when enemy has low health, and you could not finish him with normal attack but have a point for power stance.