Nordost Brahma vs Heimdall 2 power cords

Any sharing of experience on the above will be appreciated

I use McIntosh MCD 500 CDP, C48 preamp, MC302 amp

Currently with 2 x Heimdall 2 power cords feeding the pre and amp from Quantum QB4. I use Quantum QX2 between QB4 and the wall mains.

Reason I ask is that I read raving Brahma reviews everywhere, and while Valhalla power cord price is easily 3 times Brahma or Heimdalls; I wonder if I should (1) look for Brahmas instead of Valhallas; or (2) stay with the Heimdalls 2