The new story follows the heroic efforts of the crypto-zoological agency Monarch as its members face off against a battery of god-sized monsters, including the mighty Godzilla, who collides with Mothra, Rodan, and his ultimate nemesis, the three-headed King Ghidorah. When these ancient super-species—thought to be mere myths—rise again, they all vie for supremacy, leaving humanity’s very existence hanging in the balance.
So far, I've more or less enjoyed these movies. Kong: Skull Island was probably my favorite, followed by King of the Monsters and then the 2014 Godzilla. Each time, incidentally, my enjoyment was directly proportional to what I thought of the human characters: in 2014 they were boring and took up too much screen time (and they killed off the most interesting one less than an hour in), in Kong they were cool action heroes, and in King of the Monsters they were thinly-written but fortunately didn't take up too much screen time. Overall, each of them has more or less gotten the monsters right, bringing them to life with amazing special effects and letting them cut loose and kick ass whenever they show up on screen. It's far more than I could say of the 1998 Godzilla, which I believe never should've been called Godzilla.
My review of the 2014 film is here, of Kong: Skull Island is here, and of King of the Monsters is here.