1) GODZILLA VS MOTHRA (1964) 2) DESTROY ALL MONSTERS (1968) 3) GODZILLA VS GIGAN (1972) 4) THE THREE HEADED MONSTER (1964) 5) GODZILLA VS THE MONSTER ZERO (1965) 6) TERROR OF MECHAGODZILLA (1975) 7) KING KONG VS GODZILLA (1962) 8) GODZILLA VS MECHAGODZILLA (1974) 9) GODZILLA (1954) 10) GODZILLA VS THE SEA MONSTER (1966) 11) SON OF GODZILLA (1967) 12) GODZILLA'S REVENGE (1969) 13) GODZILLA VS HEDORA (1971) 14) GODZILLA VS MEGALON (1973) 15) GODZILLA RAIDS AGAIN (1955)
1) GODZILLA VS MOTHRA (1964) - classic in every way. 2) TERROR OF MECHAGODZILLA (1975) - lots of great monster battles, pyrotechnics, and excellent score my Akira Ifukube 3) GODZILLA VS THE MONSTER ZERO (1965) - fun and very 60's with a splash of good sci fi, hurt only by goofy plotting and stock footage 4) GODZILLA RAIDS AGAIN (1955) - I actually thought this was pretty good - somber tone, good effects, and lots of monster action right away 5) GODZILLA VS MECHAGODZILLA (1974) - fun music and effects and plenty of monster action for those who stick around through the awfully long singing section 6) GODZILLA (1954) - very grim and straight-faced, marred only by poor effects 7) KING KONG VS GODZILLA (1962) - very standard and colorful but the comedy and terrible Kong suit hurt it 8) GODZILLA VS THE SEA MONSTER (1966) - fun escapist entertainment in spite of low budget 9) DESTROY ALL MONSTERS (1968) - some good effects but the tone is all off 10) THE THREE HEADED MONSTER (1964) - great effects but limited monster action until the very end 11) GODZILLA VS HEDORA (1971) - terrible and awkward, yet entrancingly bizarre 12) SON OF GODZILLA (1967) - I didn't watch this until my late 20's, far too late to see the charm of this shark-jumping installment. 13) GODZILLA VS GIGAN (1972) - just one big stock footage fest and takes too long to get going 14) GODZILLA VS MEGALON (1973) - slow paced and cheap with awful music 15) GODZILLA'S REVENGE (1969) - ugghh, I hated this one even when I was 8.
1) Godzilla 2) Ghidrah, the Three Headed Monster 3) Godzilla vs. Mothra 4) Monster Zero 5) Destroy All Monsters 6) Terror of MechaGodzilla 7) Godzilla vs. the Sea Monster 8) King Kong vs. Godzilla 9) Godzilla vs. MechaGodzilla 10) Godzilla vs. Hedora 11) Son of Godzilla 12) Godzilla Raids Again 13) Godzilla vs. Gigan 14) Godzilla's Revenge 15) Godzilla vs. Megalon
1. Godzilla (1954) 2. Godzilla vs. Monster Zero (1965) 3. King Kong vs. Godzilla (1962) - Japanese version only 4. Mothra vs. Godzilla (1964) 5. Godzilla vs. MechaGodzilla (1974) 6. Destroy All Monsters (1968) 7. Son of Godzilla (1967) 8. Terror of MechaGodzilla (1975) 9. Godzilla vs. The Smog Monster (1971) 10. Godzilla Versus the Sea Monster (1966) 11. Ghidorah the Three-Headed Monster (1964) 12. Godzila Raids Again (1955) 13. Godzilla vs. Megalon (1973) 14. Godzilla's Revenge (1969) 15. Godzilla vs. Gigan (1972)
1. King Kong vs. Godzilla 2. Godzilla vs. Monster Zero 3. Terror of MechaGodzilla 4. Gojira/King of the Monsters 5. Godzilla vs. MechaGodzilla 6. Godzilla vs. Gigan 7. Godzilla vs. Megalon 8. Godzilla vs. The Smog Monster 9. Ghidorah: The Three-Headed Monster 10. Destroy All Monsters 11. Mothra vs. Godzilla 12. Son of Godzilla 13. Godzilla vs. The Sea Monster 14. Godzilla's Revenge 15. Godzilla Raids Again
Godzilla: King Of The Monsters Godzilla Vs. The Thing Godzilla Vs. Mechagodzilla Destroy All Monsters Godzilla Vs. Gigan Godzilla Vs. The Smog Monster Terror Of Mechagodzilla Ghidrah The Three-Headed Monster King Kong vs. Godzilla Godzilla Vs. Monster Zero Godzilla Raids Again Godzilla Vs. The Sea Monster Son of Godzilla Godzilla's Revenge Godzilla Vs. Megalon
1. King Kong vs. Godzilla 2. Godzilla vs. Mechagodzilla 3. Godzilla vs. Mothra 4. Ghidorah, the Three-Headed Monster 5. Godzilla 6. Invasion of Astro-Monster 7. Terror of Mechagodzilla 8. Destroy All Monsters 9. Godzilla vs. the Sea Monster 10. Godzilla Raids Again 11. Godzilla vs. Gigan 12. Son of Godzilla 13. Godzilla vs. Megalon 14. Godzilla vs. Hedorah 15. Godzilla's Revenge
1. Godzilla 2. Mothra Vs Godzilla 3. Invasion of Astro-Monster 4. Godzilla Vs Hedorah 5. Godzilla Vs Megalon 6. Destroy All Monsters 7. Terror of Mechagodzilla 8. Ghidorah, The Three Headed Monster 9. Son of Godzilla 10. Godzilla Vs Mechagodzilla 11. King Kong Vs Godzilla 12. Godzilla Vs Gigan 13. Godzilla Vs The Sea Monster 14. Godzilla Raids Again 15. Godzilla's Revenge
I've only seen like half of the Showa era. I'll rank the ones that I have seen.
Mothra vs Godzilla (thoroughly enjoyable) Gojira (bleak and awesome) King Kong vs Godzilla (love how it's both a King Kong film AND a Godzilla film, though I especially HATE the added American footage in this one) Godzilla Raids Again (nice long, primal monster fight. bleak tone. black and white) Rodan (solid but nothing too special) Ghidorah, T3HM (enjoyable all the way through, but the spy stuff has almost nothing to do with the monster stuff, which takes far too long to get going)