To me, there's no question as to who is the ultimate Avengers villain. It's Ultron, the nasty robot that hates all humanity. Ultron the embodiment of hatred wrapped in an indestructible adamantium shell. Ultron, the Avengers' deadliest menace because the Avengers themselves are responsible for his creation. It is because of this that Ultron is so deadly to the Avengers. It is not his formidable physical prowess (they have fought many such foes), it is not his sheer passion for destruction - it is that he represents the dark side of the spotlessly clean Avengers. Kurt Busiek touches on this issue in Avengers 20. Hank Pym (Giant Man), an Avengers founding member, is responsible for creating Ultron. He is the first to be captured by this menace. His ex-wife Jan is soon captured as well. As are other key members that Ultron considers his "extended family." But not before they get a chance to shiver at the fact that they are somehow responsible and connected to this mass murdering fiend.

George Perez displays amazing talent as he depicts Ultron and his deadly army of robots slaughtering an entire European nation. Ultron stands on a pile of corpses and cries out to the world that this is only the beginning. Perez let's you see just enough, but never too much to realize the horror of this scene. Colorist Tom Smith produces the art in a red wash that looks like blood, so it is even more abstract and yet more vivid. Perez literally goes wild this issue, discovering every possible angle that something can be drawn from, switching in and out of larger panels for emotional teary eyed scenes and small constricted panels as the Avengers watch Ultron's destruction impotently on a video monitor. Perez is an artist who continues to challenge himself; continues to grow. He isn't afraid to take risks and he stretches himself this issue.

Kurt provides a good mix of the Avengers feeling the horror that something so evil could have come from inside their ranks and then showing that very evil beating them down one by one. Wonderman has his best scene since returning from the dead, as he single handedly takes on a veritable army of Ultrons until he is overwhelmed by sheer force. Busiek gives him a moment to be every inch a hero. Kurt is aiming to write the ultimate Ultron story here and to that end he is referencing every other Ultron story and every other incarnation of the evil robot himself. The first chapter was a little weak, but this one was spot on and is shaping up to be the best story arc of Busiek's run.