Well, I have to disagree. Die Hard was a truly incredible movie that broke a lot of new ground. It's a movie that takes place in one evening about a smart (but bewildered) cop who literally gets caught without his shoes. There aren't many action movies willing to limit their focus like that an more. All these action movies are trying to be bigger, louder and more impossible than the previous. But none of them ever try to be smarter. Which is stupid. IMO anyway.
Interesting bit of Trivia. Did you know that "Die Hard" was actually a sequel to a movie called "The Detective" and the original John McLain was Frank Sinatra? And that under contractual obligations the role had to be offered to him first but, being in his 60s at the time, he turned it down.