I made some comparisons with NBS Black Label (BL) and Nordost Valhalla and the choice was quite easy. While the Valhalla has some good detail retrieval it lacks completely body and natural weight, also it's color is withish. In the past I owned MIT cables and found them pretty good until I met NBS. MIT cables sound a bit artificial to me(boxes??).
No, the NBS BL is the far best cable I'm aware of.
BTW in Europe there is a special version which called the NBS Active series with an excellent price quality ratio.
Now I understand that NBS is the most copied cable: because it's so good. BTW I heard recently such copied NBS (Heavens Gate Audio) which is derived from the old Statement series. Well it sounded quite bad, very hard and out of balance. So be aware of such brands, they also cost money.