I'd say Carpenter's bottom tier films are Village of the Damned, Escape from LA, Ghosts of Mars, and Pro-Life. Still haven't seen The Ward.
Strike that last bit...
The Ward
Dog shit. The only redeeming quality this had was how distractingly good some of the women looked. The scares were crap, the directing was crap, and the ending was mega crap.
I may do a ranked list just to see where everything falls now that I've seen all of his movies.