full metal jacket. <br />
it was more than just a story. i believe it was "Stanley Kubrick" at his finest. yeah a clockwork orange was a great movie(coming from a kubrick fan). dont get me wrong but his depiction of human played through its characters was flawless in this film.
Full Metal Jacket out of the three. Apocalypse Now!!!
Apocalypse Now there was a film too...
Probably Platoon was the best but out of the 3 you mentioned FMJ is