After spending a month slowly re-watching all of John Carpenters film the way i would rank them now as such.

GREAT:

The Thing 10/10
Big Trouble in Little China 10/10
They Live 10/10
Assault on Precinct 13 9/10
Halloween 9/10
The Fog 9/10
Escape from New York 8/10

GOOD:

Elvis 8/10
Prince of Darkness 7/10
Starman 7/10
Christine 7/10
Dark Star 6.5/10

OK:

Ghosts of Mars 6/10
Someone's Watching Me 6/10
In the Mouth of Madness 6/10
Village of the Damned 5.5/10

CRAP:

Body Bags 3/10
Vampires 3/10
Memoirs of an Invisible Man 2/10
Escape from L.A. 2/10

What's your Opinion on John Carpernter and Now would rank the films of his you've seen.