Matthew Chernov ranks them in Variety. Chernov regards the first one, Gojira (1954), as the best. As I've not seen most of them, I can't really say it's the best. But it's the best one I've seen and I'd be very surprised if there are any better ones. Here's an essay I wrote about it; and here's a working paper that includes that essay and some other material, including a ring-form analysis.