I like the combat actions that fighters get at higher levels but some of the lower ones don't seem worthwhile at all, power attack being the most noticeable one.
As mentionned in other threads by various people, power attack ranges from bad to barely ok depending on the situation if you compare the tradeoff vs doing 2 strikes instead. Also I don't think the mechanic really fits the fantasy of a power attack.
So how woud people like power attack to be designed?
Personally I think that if it's gonna have the same name as in PF1 it should be closer to the spirit of the original ability but a still fit in the design style of PF2.
So for me it would be a tradeoff of damage at the cost of accuracy. Obviously I have no idea right now what would be the proper number tuning, just throwing a general idea.
1 action - Power Attack
Traits: Fighter, Open
Make a melee Strike. It gains the following enhancement.
Enhancement: Your strike deals an additional damage bonus equal to your strenght modifier. This strike and any other strikes this
turn receive a -2 penality to hit. Your other strikes do not benefit from the damage bonus.