The coolest Ben 10 aliens make us wish we had the Omnitrix. Our countdown includes Ghostfreak, Big Chill, Rath, and more! Which Ben 10 alien is YOUR favorite? Let us know in the comments!

Watch more great Ben 10 videos here:
Top 10 Darkest Ben 10 Moments That Fueled Our Nightmares - https://youtu.be/I2Fv37WskbU
Top 10 Stupidly Overpowered Cartoon Characters - https://youtu.be/coysgqUPgUc
Top 10 Cartoons of the 2000s - https://youtu.be/BeHoatqdB7U

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