I believe at least a member or two on this forum has contrasted these. I have the Orchid and really like it but can’t comment on your question. But definitely search the forum for those keywords.
There's an Orchid group on Facebook, too. https://www.facebook.com/groups/orchiddac
Also, a friend sent me this:
There's an Orchid group on Facebook, too. https://www.facebook.com/groups/orchiddac
Also, a friend sent me this:
Brighter: GE 5670 5-star (stock tube); a good tube.
Softer: Tesla 6cc42 (both Les and I run this now); great midpoint tube.
Extra soft: Western Electric 2C51 / WE396
I hope that helps.