1. The Shining (1980) vs The Exorcist (1973) -- Exorcist, hands down
2. Hellraiser (1987) vs Phantasm (1979) -- ummm, neither?
3. King Kong (1933) vs Jurassic Park (1993) -- King Kong, definitely
4. Jason and the Argonauts (1963) vs Pirates of the Caribbean (2003) -- Hmmm, hard choice. Probably Pirates, though, when all is said and done.
5. Total Recall (1990) vs Stargate (1994) -- **sigh** neither is a fave rave, but I'd go with Stargate
6. Star Wars IV: A New Hope (1977) vs 2001 - A Space Odyssey (1968) -- very tough! Both are good, but utterly different kinds of movies. Split decision for me...
7. Conan the Barbarian (1982) vs Highlander (1986) -- I guess Conan...
8. ET, The Extra-Terrestrial (1982) vs Alien (1979) -- Alien, but neither really does it for me