Who makes the highest quality tube gear?


One scale of 1-10, 10 being best designed and constructed technically, personal sound preferences aside, who are the 8s, 9s, and 10s?

VAC, ARC, Atmasphere would seem like likely candidates I can think of. Are they ?

Where does Decware rank? Rogue? How about others?

SOme technical facts to help support any claims is appreciated please.

Durability and reliability matters to me here as much as anything. I would want my tube gear to continue to work as reliably as designed years down the road as well as up front.

THanks.

Thanks.
128x128mapman
...Chalice Audio ..maker of the 'Grail' SET monoblocks...are certainly in a handful of SET's that can be called...if there is such a thing...the best..i have heard the Audio Note...Lamm refs..and most of the other great SETs and the Grails do everything better then any of the others to my ears.
For a combination of sonics, reliability, and customer service, also tube life is extremely long. BAT has worked for me for years. On sonics alone (I've heard but not owned) I really like the VAC products too.
Having owned a few, Viva, CJ, I think Ayon is hard to beat for price, sound and reliabilty, at the moment. No complaint about CJ and Viva, by the way.