if I'm given the choice of Steven Spielberg I choose because I think he is the best director in the world and work a lot of the best award
first, i just saw two Cameron's films, Titanic and Avatar, but i watched so many Spielberg's movies, especially those war movies, most of them are so classic. Second, i don't really like Cameron movie's theme(at least Titanic and Avatar's), but Steven Spieberg's movies, like Schindler's List and Munich, these movies told us something we should think about, so Steven Spielberg is my choice.
james cameron is the best director ,he have lot of ideas.so that biggest achivement moive titanic to give ideas for everylovers.