From what I've seen here, and other Wondy posts on the old s_d, I really wonder why Dr Psycho isn't a bigger villain. He could and should totally be Diana's Joker - not in the way of being her most constant and iconic foe, but as in a complete agent of chaos, someone fundamentally dedicated to bringing order down. He doesn't need the master plan, he just needs to get out of his bed and fuck that shit up.
Though I can see him totally running a master plan, imagining it to be like art. A masterpiece of violence and hate and human evil, his own version of Beethoven's 5th, or Dante's Inferno.
I just looked on Amazon...the trades for Perez's run ends at #22? Nooooooo! Reading all this now makes me wish that they would collect the rest of Perez's run.