+1
I tend to go for underrated/unappreciated movies whenever I make a list of this sort.
My favorite is probably The Assassination of Jesse James which I obsessed with around the time it came out. It's like the Malick movie Malick's been trying to make since after Tree of Life.
The only one that competes with it for my favorite movie ever is Kubrick's Barry Lyndon which always gets lost when people are too busy with The Shining and 2001.
Love The Fountain and Malick's own The New World is kind of important to me since it's the first movie I saw here in the US.
Road to Perdition is beautiful as well. A comic book movie as well so suddenly everyone's top ten list ought to be different.