The real issue with pk is not that she hits hard or anything, she has too much bleed. The feat Sharpen Blade seems to stack with her already powerful bleed. When activated she can grab me stab me 3 times and basically just walk away as i bleed to death.
Also, Bleed/Poison should not kill anyone. Too many times do they just run away when an execution could save my life. It should just bring us down to 1 so that they have to actually finish us. There should never just be a free, cheesy, kill.