As for the INs and OUTS: I think VERTIGO is a classic, but I never really considered it a classic noir; I like PICKUP ON SOUTH STREET, but it's not a favorite. I'd rather see THE BIG HEAT and MURDER MY SWEET in the top 25. I have a tendency to group films noir and crime dramas of the '40s and '50s, as there's often overlap in both visual style and theme. I favor the inclusion of ACT OF VIOLENCE, because it's a very good movie and THE BIG COMBO because of its fantastic visual style---although, like THE BIG HEAT, it's probably more crime drama than film noir in theme.
In one of the other posts, someone mentioned VERTIGO along with VIOLENT SATURDAY, A KISS BEFORE DYING and LEAVE HER TO HEAVEN as possibly noir color films. I think LEAVE HER TO HEAVEN is definitely noir; I'm not so sure about the others. More recent neo-noirs, like CHINATOWN, FAREWELL MY LOVELY and BODY HEAT, to name three, are proof enough that the noir universe doesn't have to be black-and-white.
As for visual style in the few noir color films of the classic period, I think SLIGHTLY SCARLET, photographed by John Alton, is probably the best example we can find.
Feel free to post my original list if you like. I'm not sure anyone but me would be interested in seeing it.