AudioQuest NRG-10 (used) vs Blizzard (new) — same price, which one makes more sense?

I’ve been demoing two AudioQuest NRG-10 power cables that were loaned to me by a dealer. They’re offering me the pair for around $1500 (used).

At the same time, they offer a brand new pair of Blizzard for around $1400.

Here’s my current setup:

• Amp: Denon PMA-3000NE
• Speakers: Sonus Faber Sonetto III G2
• Streamer: Denon DNP-2000NE
• Power conditioner: AudioQuest Niagara 1200
• Speaker cables: AudioQuest Rocket 88

Would switching to Blizzard be a step down from NRG-10?

Or is Blizzard actually a better match for Niagara 1200 and modern components?

Appreciate any thoughts!