Godzilla 1984Pretty enjoyable, more serious update of the character. Well, aside from the goofy pop song at the end.
Godzilla vs BiollanteGood second outing. I could do without the half hearted mystical element and the all but impenetrable Engrish bits, but other than it's very watchable.
Godzilla vs King GhidorahThe time travel plot is bonkers and makes zero sense, and the super speed effects are notably bad next to everything else, but it all somehow works thanks to sheer entertainment value.
Godzilla and Mothra: The Battle for EarthThe new mythology around Mothra is interesting, and Battra is a cool addition, but the rest of the movie is less than spectacular. That being said, Godzilla swimming through Magma and popping out of a volcano is pretty badass.