Sure sounds like a simple question. But...

First off, which Haze Gray? The purple-blue based one of most of WWII, or the late war/modern neutral gray?

Next, I must make the "standard disclaimer" that I am looking at everything on a monitor, so am not seeing actual colors.

I got ebay entries for the two colors you mention. The back of the bottle states that Pale Blue Gray is wartime 5-P. Thus, it is not wartime 5-H, and an online comparison of the two with images of the S&S chip set show it is lighter than 5-H. Compared to modern Haze Gray, it is too blue, and too light.

As for Light Sea Gray, an ebay image of the back of a bottle says it is FS 36307. Modern Haze Gray is FS 26270 making it much darker. Light Sea Gray is also not dark enough, nor blue enough to be wartime 5-H.

Neither is much of a match, but based on what I am seeing, you are better off with the Pale Blue Gray if you have absolutely no other options. It would need to be darkened some to match wartime 5-H, and will just be too blue for the modern color, but I do not know how you would change that. You would just have to live with it.

FWIW, here are the S&S chips online (and therefore only for general reference, not great accuracy since monitors distort colors.) The neutral grays of the late war equate to modern colors:

http://www.modelwarships.com/reviews/books-plans/snyder-short/usn-1/usn-1.html

http://www.modelwarships.com/reviews/books-plans/snyder-short/usn-2/usn-2.html

HTH some