User blog comment:Dragonking99/What is Ben Tennyson's 10 Most Powerful Aliens Form!/@comment-26498474-20150730165024

Gravattack, Chromastone, Clockwork, Feedback, Diamondhead, Swampfire, Terraspin, XLR8, Shocksquatch and Spidermonkey.

Umm... All are the very best!!!!