Tough call. When I'm faced with such a choice...flip a coin. Let the gambol god decide for you. Or better yet, listen to
@Big Jilm and buy both.
I've owned a set of Noirs, bought them on the pre-sale ages ago when they came out. The only issue there is finding more if that breakdown isn't enough...I don't see them pop up very often.
I don't own a set of the hot-stamped Aurora Stars, but have played with them. Between the two, I like the feel of the Noirs better, but the look of the hot-stamped chips for tourneys is awesome.