Pic related are favorites but if it helps here are my favorite movies of those genres

>Fantasy
The Lord of the Rings: The Fellowship of the Ring (2001)
The Lord of the Rings: The Two Towers (2002)
The Lord of the Rings: The Return of the King (2003)
Star Wars: Episode IV – A New Hope (1977)
Excalibur (1981)
The Hobbit (1977)
Wizards (1977)
Gandahar (1987)
Star Wars: Episode V – The Empire Strikes Back (1980)
Krull (1983)
Star Wars: Episode VI – Return of the Jedi (1983)
Fantastic Planet (1973)
The Lord of the Rings (1978)
Beastmaster (1982)
Conan the Destroyer (1984)
Jason And The Argonauts (1963)

>Scifi
Star Wars: Episode IV – A New Hope (1977)
Flash Gordon (1980)
Wizards (1977)
Star Wars: Episode V – The Empire Strikes Back (1980)
Planet of the Apes (1968)
Logan's Run (1976)
Krull (1983)
Star Wars: Episode VI – Return of the Jedi (1983)
Star Trek VI: The Undiscovered Country (1991)
Star Trek IV: The Voyage Home (1986)
Gandahar (1987)
Fantastic Planet (1973)
The Black Hole (1979)
Star Trek V: The Final Frontier (1989)