which character in bot mode is closer in size to Godzilla

1) Omega Supreme
2) Metroplex or Fort Max
3) A combiner

 

I would say a combiner, but you have to remember scale is fucked. Either Omega Supreme is titanic, big enough to crush a combiner under foot, or barely a head taller depending on media. Then you've got Metro and Max who are both portrayed at wildly different scales depending on their artists particular panache that day. Whatever looks best with your Godzilla figure, use it  

 

Probably omega... a combiner would be roughly half his height... and Metro and Max are big enough to squash Godzilla

 

Which Godzilla. He changes size almost as often. A quick check shows 50 - 150 meters has his various heights.

 

I thought omega was about the size of a combiner

 

Omega is definitely bigger... he's a spaceship

 

So is Cosmos. And while we're at it imagine how big Astrotrain is he can comfortable fit an entire Devastator.

 

Omega.

 

Er, no...not a spaceship if we're speaking of G1. There, he was a ROCKET and a tank, along with his own staging area.

Rocket=arms.
Tank=torso.
Legs and backpack=staging area.

So, that's a pretty big tank, BTW.

But yes, you're still correct in that Omega is bigger than a combiner.

 

G1 Omega and the Constructicons were enemy's. Pretty sure Omega fought Devastator in an episode and they were similar in height with Omega being a tad bigger, no?

 

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Except those times when Fort Max is just a kinda tall guy and not city-sized.