Board Thread:General Discussions/@comment-1030114-20131126202429/@comment-133597-20140210070505

Kiryu definitely is the most balanced and versatile of the 3 Mechagodzilla's, between power and speed, while Mechagodzilla II wins in terms of sheer brute force, but is slow as hell on the ground. The first Mechagodzilla just seems a little laughable compared to them. Kiryu's Absolute Zero Gun would instantly wreck either Mechagodzilla, but leaves itself vulnerable while charging and firing it, and Mechagodzilla II's Plasma Grenade would do serious damage too. Kiryu's biggest disadvantage is its limited power source and cost production/complexity (as shown with the government's inability to restore the Absolute Zero Gun in the sequel, budget, a couple things that made it a little more "realistic", lol).

If I had to choose one, I'd probably go with Kiryu. Mechagodzilla II is a brute, but it was tailor made to specifically fight and kill Godzilla whereas Kiryu was made to fight not just Godzilla, but ANY monster that attacks Japan.