I think it helped that @MartyMcFly clearly said the list should be what you consider 10 of the greatest films and not necessarily personal favorites. In the annals of movie history I don't think there are a lot of movies that single-handedly pushed the film medium forward like Kane. It's pretty much a requirement to put it on the list solely of how advanced it was compared to contemporary films.
Basically..and that's why I said greatest and not favorites because my list would probably look a lot different minus the godfather and the maltese falcon