FINAL WARS made me hate Ryuhei Kitamura. Ugh.
The Japanese version of the original GODZILLA is superior, but the US edit is no slouch either. It's an ingenious approach to disguising a foreign film as an American one, and it allows for a number of scenes to retain their original Japanese audio, which is then "translated" for us by Raymond Burr. It might be a simplification of the original that glosses over certain uncomfortable plot points as a concession to post-war American audiences, but it's no bastardization. The film's Japanese are allowed their dignity - something all too rare in Hollywood films, even in the decades after GODZILLA hit US theaters.
For sheer GODZILLA madness, it's all about GODZILLA VS HEDORAH. It is psychedelic, experimental, and contains enough death and violence to get a early-70s PG rating, at at time when G could contain bloody head shots (BATTLE OF BRITAIN). Godzilla flies in this one but that's not even the most memorable sight in the film - that'd probably be the sight of Hedora taking bong hits from a smokestack.