User blog comment:WanderingSkull/Invader Zim vs. Perry The Platypus/@comment-98.176.246.190-20130808150510

I'm gonna compare things a little differently if I may, the PAK is more precise & dexterous that the grappling hook for getting around. Zim has a better gun and a slight edge with the organ harvester as it is alien technology. The crossbow would arguably be more usefu than Gir, however since Perry is an adorable creature, he'd likely get the brunt of the robot's psychotic adoration. It would be all the distraction Zim needs.

In the end, I'm giving it to Zim for a few reason. Likely anywhere this fight would take place would be on Zim's territory. His underground base or sPace station, as it is Perry's tendency to break down the door. Zim's bases are far more fortified than Doof's (lawn gnome army?)  and Perry always mnages to get caught at Doof's lair anyhow. Zim'd see Perry coming from a mile away. And while Doof is a relatively harmless eccentric, Zim has actually gotten away with kidnapping and experimenting on people. And alien tech beats sPy tech.

Zim may not be as competent as Perry but he's way more competent than Doofenshmirtz and far less merciful than either. He is inventive and genuinely dangerous and that's why I'd say he'd win.