Being my second ever Godzilla movie, there's a lot of bias, but this remains to this day my favorite of the sixties Godzilla movies. While most people consider this Godzilla to be too "Cookie Monster", I actually like the design a lot more than I did the 1964 look. Rodan was always Godzilla's "true" bro to me thanks to this movie, and not Anguirus. And of course, King Ghidorah is just fantastic.
I love how by this point, unlike the previous Godzilla movies trying to stick to some semblance of the "real world", they just went all out right from the beginning. Yeah, it's 196X, we can fly to Jupiter's moon in a matter of days.
I only wish there were an official copy (Hell, I'd settle for a fan edit, but that's kinda rare in this fandom) that gave us the original Japanese version with Nick Adams' voice in English. I never used to be able to stand watching this movie subbed because having his voice dubbed felt more wrong to me than everyone else being dubbed into English. Now though it's hard to go back to the dub thanks to the cutting of the Xilien language scenes.