It was my understanding that paladins were supposed to be strong single-target damagers and tanks with supportive auras because they're essentially a leadership figure.
I've pulled off some nice crits with my buffed up Bleak Walker whom I set up for big time damage, but he can't really compare to the adventurers that I've created to test the classes out. Even the paladin I specced for 100% tanking lost out to Edér in the long run due to his lack of passive endurance regeneration and was barely able to keep the enemy occupied in larger fights due to his lack of bonuses to engagement.
I tend to really enjoy the paladin class and it's had its fair share of absolutely OP reiterations, but in PoE it feels lacklustre.