You measured a higher black level with the LG LH90 than a 9G Kuro elite? o_O Something doesn't seem right about that, especially with the Samsung matching the Kuro elites in black level in your rankings. Here's CNet's take on the LG LH90 black levels:
Black level: Like the other displays in the room, the LH90 evinced a very deep shade of black. The initial scene in the Comedian's apartment at night, for example, was reproduced beautifully, with inky shadows in the background and realistic depth in black areas like the letterbox bars, the black ninja suit of the assassin, and the night sky outside the windows. In fact the LG's blacks were nearly indistinguishable during dark scenes from those of the Samsung B750, A950, and B7000 LCDs, and not quite as deep as those of the Sony XBR8, the Panasonic V10, and the Pioneer--but again the differences were subtle, even in a dark room in side-by-side comparisons.
The LG also delivered very good shadow detail. In Drieburg's walk home after visiting Hollis, for example, we noticed that the LH90 appeared a bit more realistic and closer to our reference when rendering the dark steps of the brownstone than did the B750 or the B7000, and roughly equal to the other LCD displays, although not quite as good as the plasmas.
Differences in black-level performance came out in lighter scenes, however, when the letterbox bars of the LED displays, especially the Samsung B7000 but also the LG, became brighter than they appeared during dark scenes. Darker bars improve perceived contrast ratio, and the Samsung B750 and the plasmas' bars remained constant and darker than the others during the brightest scenes. Between the three local-dimming LEDs, the LG showed the most variation: it had the brightest bars in bright scenes, and it also faded to a darker black than the others between the bright scenes during the opening credits, for example (although it didn't turn off completely and distractingly, as did the B7000). That said, the brightness variations of the LG's backlight as a whole were subtle and didn't impinge on our appreciation of the film.
We also noticed some blooming in certain scenes with white objects against black backgrounds. It appeared as a sort of brighter cloud around the object against the black, and was most obvious in the menu text and onscreen indicators of our PS3 or on credits against a black background, for example. Bright areas on the screen also occasionally spilled over into the letterbox bars. When Rorschach shines the flashlight around the Comedian's apartment, for instance, the bottom bar brightened slightly near where the picture of Nixon and the Comedian was illuminated, then darkened again as the light faded. The effect was more obvious on the LG than on the other two local-dimming LCDs, and, as expected, none of the other displays showed such blooming effects.
Yet you gave this a higher ranking than a 9G Kuro???