Hold discussions about the Showa series, the original series in which Godzilla transformed from an evil monster that needed to be killed into an almost superhero figure (probably more proof that he is the basis for Gamera). This is the less popular series, due to its loss of popularity amongst older viewers. Movies that were part of the Showa series include (not counting the original movie, since that is part of every series):
Godzilla Raids Again (1955) · King Kong vs. Godzilla (1962) · Mothra vs. Godzilla (1964) · Ghidorah, the Three-Headed Monster (1964) · Invasion of Astro-Monster (Godzilla vs. Monster Zero) (1965) · Godzilla vs. the Sea Monster (1966) · Son of Godzilla (1967) · Destroy All Monsters (1968) · All Monsters Attack (Godzilla's Revenge)(1969) · Godzilla vs. Hedorah (1971) · Godzilla vs. Gigan (1972) · Godzilla vs. Megalon (1973) · Godzilla vs. Mechagodzilla (1974) · Terror of Mechagodzilla (1975)

I like godzilla vs mothra because mothra and botra help godzilla and later reappear.

Batra isn't in the Showa series. I think you are referring to the version in the Heisei series.