Someone said:The one's disparaging the math think PA is col because it's effects are not immediately recognizable or intuitive; suppose this feat:
Strong attack [General]
Your blows are strong and powerful
Benefit: You get +1 dodge bonus to AC.
Strong attack is idiotic. It may be balanced (many people house rule Dodge to have Strong Attack's effect) and to some people it can be fun. But it doesnt work as intended. It should help you deal damage, not avoid hits. The only advantage of Power Attack over Strong Attack is that you need calculus to show that PA doesn't work as the designers wanted it to work. It may be fun, it may be balanced, it may be useful, but what the math shows undeniably is that it's counter intuitive and doesn't work like it's supposed to work.
I'm curious is it supposed to work in a way where you reduce accuracy and do more damage when you hit. That because of that reduced accuracy you may miss more and lower your overall damage so a poorly played usage of it doesn't net you benefits. But in fact against most CR appropriate encounters some benefit is seen overall. Because that's what the numbers show, and that is what I thought it was supposed to do.
It might not be working as well as it could, but it seems to be working at least up to its general intent.