O.K. I'll admit I've never been a Godzilla fan, but I just watched Godzilla King Of The Monsters for the first time. I believe that it's essentially the original, excepting of course that Raymond Burr's parts were added to the film 2 years after it's original release in 1954. The version I watched (in black and white... sweet) was released in American theaters in 1956 with some other minor changes.
I hadn't realized what an incredible allegory to the nuclear holocaust GKOTM really was, and on so many levels too. It was a very dark movie, so much so that you don't really acknowledge that Godzilla is simply a rubber suit. The imagery and scenery were quite impressive. The Oxygen Destroyer was an allegory in and of itself. The question of...
the devastating result of my actions unleashing the evil of my creation into the world could become real versus the fact that my creation could save the world from the very real Godzilla
...was a wonderful and sobering storytelling device. These same symbols of total devastation; which are ofttimes allusions to the very real H bomb, are ever present in anime as well. Have I been missing out on Godzilla all this time?
Oh yeah, that was the first time I've seen the fins on Godzilla's back glow before he fires the blast from his mouth. It was a pretty impressive image against the night sky and devastation of the scene.