IDW avenged the lesser Kaijus… in "Godzilla: Rulers of Earth" Zilla and Godzilla fought… and unlike in the japanese movie it was a close one, 'cause Zilla played to his own strengths (superior speed, tunneling ability) and fought smart (see the airforce coming in while Godzilla is throttling you? Quickly bend back so that he gets a faceful of missiles), and in the end, while he had to bail, he left Godzilla with a nasty slash to the belly.

Oh, and Jet Jaguar went even further: in the same comic he tried to help Godzilla against Orga and Gigan, and when afterwards Big G went after him he got back up and decked the "King of the Monsters" with a single uppercut.

I love that comic.