Great question, but I would say any movie I keep returning to is definitely one of my favorites. Almost all of mine are from 2010 or before.

Here’s a list of (some of) my most watched films in alphabetical order:

Alien

Aliens

The Bourne Identity trilogy

Casino Royale (Daniel Craig, not David Niven)

Dark City

The Dark Knight

Die Hard

Fight Club

The Gentlemen (recent addition)

The Godfather I & II

Goodfellas

John Wick (the original)

The Matrix (first one only)

Once Upon a Time in Hollywood

The Princess Bride

The Rock

The Sting

Terminator 2

The Thing (John Carpenter)