12BH7 Nos

I dont think that there is a bad old stock 12BH7. Many talk about the RCA black plate but I have always preferred the "house" sound of Tung Sols. To my ears, RCA always had a bit or a tendency toward the warm and rich and I prefer a bit more extension and linearity. 

Thin Black plate CV5042. Not the Brimar branded 12BH7a ones. 

And what do you prefer for 12ax7 ?
I would be oriented on Raytheon, Tung-sol, Sylvania or Rca black plate.
Amplifier QS Silver mono KT88 (90watt).

Thanks!