So, obviously we have a few eras of the Godzilla series to get through before I can dive into that one. But I'll give my abridged thoughts here, since a lot of people have asked.
All in all, Godzilla vs Kong was pretty satisfying. Instead of artificially inflating Kong to be Godzilla's equal, they just told a story where he was the underdog. Winning fights isn't everything. Kong can be weaker than Godzilla and still be a compelling character. His being closer to human doesn't make him morally superior, but it does give him vulnerability. The two are very different characters, and that should be embraced, rather than downplayed.
Pleasingly, Godzilla's antagonism manages to make perfect sense in the plot and not screw him over. Kong gets more screentime, but Godzilla's played the Mysterious Stranger role in this series before. It suits him. Both of them part ways as heroes in their own right.
Mechagodzilla - and I don't think it's much of a spoiler to mention him now - was one of