What's so interesting in Animated is it's back story. Optimus Prime here is not the Autobot supreme commander but Ultra Magnus. Animated's first scene is a flashback of G1's War Dawn with Dion being at the end of the clip. Ultra Magnus being one of the most popularly speculated by fandom as Dion. So what we have here is an alternate Cybertron history much like Turtledove's alternate history novels of Earth. Megatron instead of earning the emity of a certain Orion Pax earns the emity of a certain bot named Dion who is rebuilt into Ultra Magnus. Ultra Magnus in G1 has had noted rivalry's. Cyclonus, Shockwave and Galvatron. But in this continuity he is Megatron's opposite number who won (tentatively) the Great War.