Unless my math is wrong, I think Godzilla's is significantly bigger. So avg gorilla pp is 1.25 in, and avg height is 61.2 in, so pp to height % is 48.96 (right?). So if kong is 1248in. in the first Kong movie his pp would be just over 2 ft. But, with the new trailer he's the same size as Godzilla, so I pumped up to his size to 4716 in, the same as Kong.
Any Doughboys fans who remember the double with Eugene around the time Skull Island came out will know. Godzilla's working with a bigger tool.