User blog comment:Matt Hadick/Ultimate Robot Battle Round 5/@comment-5870856-20130704194042

Optimus is smarter than Gundam in terms of being sentient, and as others have pointed out he has badass armour, he's taller and he's far more "dynamic" whatever that means. The remnants of ol' Gundam will be so beaten up they'll look like the Borg cube at the end of the Ultimate Spaceship Battle.