User blog comment:WanderingSkull/Invader Zim vs. Perry The Platypus/@comment-173.183.77.217-20130808061537

Zim's greatest weakness is his considerable incompetence. Perry regularly goes up against an adversary that is very similar to Zim-- Doofenshmirtz. Perry goes up against an incompetent evil genius with advanced technology on a regular basis and always comes out on top. Zim is regularly foiled by either his own incompetence, or the efforts of the equally incompetent Dib.

What Zim's dealing with here, is essentially someone who is much smarter, quick witted and competent than Dib, while Perry's merely up against a more technologically advanced but far less competent Doofensmirtz. I think Perry's experience and general competence gives him the win over Zim's technological superiority. If Zim was more competent, perhaps Perry would be in more trouble, but Zim's an idiot.