Oh wow rough thread haha. So many amazing movies I've seen so hard to narrow it down. Couldn't tell ya but here is a few that I really have loved:
Saving Private Ryan
The Godfather (just shocked more haven't included this)
The Lord of the Rings Trilogy
The Dark Knight
Planet of the Apes (original obviously)
A Few Good Men
So there's a few that I have just found fantastic. I know I'm missing some haha, but I'll update if I think of anymore.