With Rotten Tomatoes you can rank the franchise two ways, by % Liked or by Audience Score. While both are close I still choose to do 2 separate lists.
Godzilla (1954)
Godzilla vs Destoroyah (1995)
GMK: Giant Monsters All-Out Attack (2001)
Godzilla King of the Monsters (1956)
Godzilla vs Biollante (1989)
Godzilla: Tokyo SOS ( 2003)
Godzilla vs Mechagodzilla (1993)
Godzilla FINAL WARS (2004)
Destroy All Monsters (1968)
Godzilla X Mechagodzilla (2002)
Mothra vs. Godzilla (1964)
Godzilla (2014)
Godzilla 1985 (1985)
Ghidorah, the Three-Headed Monster (1964)
Invasion of Astro-Monster (1965)
Godzilla vs King Ghidorah (1991)
Terror of Mechagodzilla (1975)
Godzilla vs Mothra (1992)
Godzilla vs. Mechagodzilla (1974)
Godzilla vs Space Godzilla (1994)
Godzilla 2000 Millennium (1999)
Godzilla vs. Hedorah (1971)
Godzilla vs. Gigan (1972)
King Kong vs. Godzilla (1962)
Godzilla × Megaguirus (2000)
Godzilla vs Sea Monster
Godzilla Raids Again (1955)
Godzilla vs. Megalon (1973)
Son of Godzilla (1967)
GODZILLA (1998)
Godzilla's Revenge / All Monster Attack (1969)
Rotten Tomatoes Audience Liked It
1. Godzilla (1954) 89% Liked It 4.1 points (9,324 people)
2. Godzilla vs Destoroyah (1995) 81% Liked It 3.7 points (7,412 people)
3. GMK: Giant Monsters All-Out Attack (2001) 78% Liked It 3.7 points (7,681 people)
4. Godzilla King of the Monsters (1956) 72% Liked It 3.6 points (9,183 People)
5. Godzilla vs Biollante (1989) 72% Liked It 3.6 points (6,446 people)
6. Godzilla: Tokyo SOS ( 2003) 72% Liked It 3.5 points (7,379 people)
7. Godzilla vs Mechagodzilla (1993) 71% Liked It 3.4 points (7,477 people)
8. Godzilla FINAL WARS (2004) 70% Liked It 3.6 points (10,340 people)
9. Destroy All Monsters (1968) 70% Liked It 3.4 points (7,340 people)
10. Godzilla X Mechagodzilla (2002) 69% Liked It 3.5 points (7,556 people)
11. Mothra vs. Godzilla (1964) 67% Liked It 3.4 points (9,514 people)
12. Godzilla (2014) 66% Liked It 3.6 points (173,832 people)
13. Godzilla 1985 (1985) 66% Liked It 3.4 points (5,772 people)
14. Ghidorah, the Three-Headed Monster (1964) 65% Liked It 3.5 points (1,403 people)
15. Invasion of Astro-Monster (1965) 63% Liked It 3.4 points (7,997 people)
16. Godzilla vs King Ghidorah (1991) 63% Liked It 3.5 points (3,913 people)
17. Terror of Mechagodzilla (1975) 62% Liked It 3.4 points (2,381 people)
18. Godzilla vs Mothra (1992) 61% Liked It 3.4 points (3,264 people)
19. Godzilla vs. Mechagodzilla (1974) 61% Liked It 3.3 points (7,981 people)
20. Godzilla vs Space Godzilla (1994) 55% Liked It 3.4 points (5,161 people)
21. Godzilla 2000 Millennium (1999) 53% Liked It 3.1 points (11,623 people)
22. Godzilla vs. Hedorah (1971) 50% Liked It 3.2 points (7,267 people)
23. Godzilla vs. Gigan (1972) 50% Liked It 3.2 points (6,990 people)
24. King Kong vs. Godzilla (1962) 49% Liked It points 3.1 (10,367 people)
25. Godzilla × Megaguirus (2000): 49% Liked It 3.2 points (6,801 people)
26. Godzilla vs Sea Monster (1966) 39% Liked It 3.0 points (7,165 people)
27. Godzilla Raids Again (1955) 38% Liked It 3.1 points (3,200 people)
28. Godzilla vs. Megalon (1973): 36% Liked It 2.7 points (27 people)
29. Son of Godzilla (1967) 30% Liked It 2.8 points (7,405 people)
30. GODZILLA (1998) 28% Liked It 2.5 points (302,046 people)
31. Godzilla’s Revenge / All Monster Attack (1969) 19% Liked It 2.5 points (2,939 people)
Rotten Tomatoes Audience Score
1. Godzilla (1954) 89% Liked It 4.1 points (9,324 people)
2. Godzilla vs Destoroyah (1995) 81% Liked It 3.7 points (7,412 people)
3. GMK: Giant Monsters All-Out Attack (2001) 78% Liked It 3.7 points (7,681 people)
4. Godzilla King of the Monsters (1956) 72% Liked It 3.6 points (9,183 People)
5. Godzilla vs Biollante (1989) 72% Liked It 3.6 points (6,446 people)
6. Godzilla FINAL WARS (2004) 70% Liked It 3.6 points (10,340 people)
7. Godzilla (2014) 66% Liked It 3.6 points (173,832 people)
8. Godzilla: Tokyo SOS ( 2003) 72% Liked It 3.5 points (7,379 people)
9. Godzilla X Mechagodzilla (2002) 69% Liked It 3.5 points (7,556 people)
10. Ghidorah, the Three-Headed Monster (1964) 65% Liked It 3.5 points (1,403 people)
11. Godzilla vs King Ghidorah (1991) 63% Liked It 3.5 points (3,913 people)
12. Godzilla vs Mechagodzilla (1993) 71% Liked It 3.4 points (7,477 people)
13. Destroy All Monsters (1968) 70% Liked It 3.4 points (7,340 people)
14. Mothra vs. Godzilla (1964) 67% Liked It 3.4 points (9,514 people)
15. Godzilla 1985 (1985) 66% Liked It 3.4 points (5,772 people)
16. Invasion of Astro-Monster (1965) 63% Liked It 3.4 points (7,997 people)
17. Terror of Mechagodzilla (1975) 62% Liked It 3.4 points (2,381 people)
18. Godzilla vs Mothra (1992) 61% Liked It 3.4 points (3,264 people)
19. Godzilla vs Space Godzilla (1994) 55% Liked It 3.4 points (5,161 people)
20. Godzilla vs. Mechagodzilla (1974) 61% Liked It 3.3 points (7,981 people)
21. Godzilla vs. Hedorah (1971) 50% Liked It 3.2 points (7,267 people)
22. Godzilla vs. Gigan (1972) 50% Liked It 3.2 points (6,990 people)
23. Godzilla × Megaguirus (2000): 49% Liked It 3.2 points (6,801 people)
24. Godzilla 2000 Millennium (1999) 53% Liked It 3.1 points (11,623 people)
25. King Kong vs. Godzilla (1962) 49% Liked It points 3.1 (10,367 people)
26. Godzilla Raids Again (1955) 38% Liked It 3.1 points (3,200 people)
27. Godzilla vs Sea Monster (1966) 39% Liked It 3.0 points (7,165 people)
28. Son of Godzilla (1967) 30% Liked It 2.8 points (7,405 people)
29. Godzilla vs. Megalon (1973): 36% Liked It 2.7 points (27 people)
30. GODZILLA (1998) 28% Liked It 2.5 points (302,046 people)
31. Godzilla’s Revenge / All Monster Attack (1969) 19% Liked It 2.5 points (2,939 people)
