Another thing. Folks thinking Kong isn't big enough to take on Godzilla need to take in account a gorilla's strength compared to a human. (even a chimp, who is smaller than a man ) is much much stronger than an adult human male.
Now think about a Gorilla, who is much larger than a chimp. I've heard estimates that an adult silver back gorilla ( that is roughly 6' tall ) is up to 20 times stronger than an adult human male. Multiply that by 25 or 30 times in size and height ( judging by this pic ) and you have a kong that can prolly knock godzilla off his feet. Not to mention he'll probably be more agile and faster.
research a gorilla's strength, its a good read. look it up.
Anywho, imo, Kong will more than make up for his size being roughly half of Godzilla's on pure strength alone. I dare say he will be just as strong, if not more so than Big G.
All that said, IF A Vs film is ever made, I fully expect the studio to follow some other films formula's in a Vs film, ie, heroes meet, heroes fight, bigger threat shows up, heroes must unite to take out bigger threat. heroes win, part ways.