Optimus Prime (IDW 2005) vs Megaguirus: who would win?

Too close to call

Optimus Prime (IDW 2005) · Transformers · Base

Tier

HIGH 5-A, up to 1-A

Attack Potency

Brown Dwarf Level, up to Outerverse Level

Speed

Supersonic, up to Immeasurable

Durability

Brown Dwarf Level

Megaguirus · Godzilla · Base

Tier

HIGH 5-A

Attack Potency

Brown Dwarf Level

Speed

Supersonic+

Durability

Brown Dwarf Level

A heuristic estimate from normalized VS Battles Wiki stats: tier, attack potency, speed and durability.