The top movies I have enjoyed for one reason or another.
1. Lord of the rings trilogy - As an epic tale and a trilogy it is a masterpiece in my opinion. A fairly simply tale between good and evil, friendship, loyalty and temptation.
2. Star wars trilogy - Same as with Lord of the Rings, a simple story about good and evil and hope.
3. Godfather trilogy - Don't really think there is a lot to explain here, it's a masterpiece.
4. The Neverending story - In my opinion the best children/young movie ever made, that can teach them some good lessons.
5. Alien / Alien 2 - As a horror sci-fi, this is top-notch, with some of the most iconic monsters ever created.
6. Forrest Gump - It is a very good tale and a story of an underdog hero. Might not be a movie you watch countless times, but it is one that you will not forget once you have seen it.
7. Indiana Jones (the first 3) - Good adventure movie with a likeable main character.
Could add more, but to me, these are movies within film history that I think stand out, either as being genre-defining or simply delivering entertainment at the highest level.