My favorite movie would be a tie between The Lost Boys, and Reign of Fire.
The Lost Boys because back in the day when it was released it was more of a revolutionary movie for the Vampire genre, along with a good climaxed story line that kept you guessing as to how the movie would play out.
Reign of Fire because it was the first realistic dragon movies I have ever seen and the storyline within it was developed to a point that felt so surreal and exhilarating that it kept me on the edge of my seat of not knowing when or where a dragon would come from or what kind of havoc they would reap at that given time.