Top 10 Aliens In Ben 10 Alien Force

The Top Ten

Echo Echo
Goop
Big Chill

It's partly ghost powers is what makes him one of the formidable aliens. - Kiteretsunu

Swap Fire

The coolest one

Swampfire is so much cooler

Jetray
Humungousaur
Chromastone
Brian Storm
Spider Monkey
Alien X

Easily kill any of these guys piece of cake

The Contenders

Rath

He's so damn funny!

Lodestar
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