I've been thinking a lot about Avatar lately and the films of James Cameron in general. Aliens is easily in my top 5 movies of all time and I've enjoyed most of James Cameron other films.
Wasn't sure which films to include on the list, as he directed, wrote or produced a number of other films, but went with those listed below as they were included in his wikipedia filmography. His non-fiction films are not included.
Aliens (1986) 10/10
The Terminator (1984) 9/10
Terminator 2: Judgment Day (1991) 8/10
Avatar (2009) 7.5/10
The Abyss (1989) 7.5/10
True Lies (1994) 7/10
Alita: Battle Angel (2019) 7/10
Titanic (1997) 6.5/10
Rambo: First Blood Part II (1985) 6.5/10
Solaris (2002) 6/10
Strange Days (1995) 3/10
Piranha II: The Spawning (1982) 2/10