Highest BUILD quality tube amps?

I agree with Atmasphere. PTP wiring is really the best design for vacuum tube amps. I have a Line Magnetic integrated amp and my dealer told me the company designed the amps based on the old Western Electic blueprints from USA designs. So far, compared to Primaluna, Cary, Rogue and some lower priced ARC models I have liked the sound, performance and customer service from LM Audio and my dealer.
Of course, my limited experience with tubes amps leaves others opinions as valid as mine, even more so. I think BAT, Border Patrol, and Decware probably make great amps...but have not heard them

like preston suggested, check out Decware!

Hand made amps from Dennis Had...little gems of tube magic.

Agree with bdp24, bad idea to install tube sockets on a circuit board and with Ralph, hardwired, less circuit boards are best EXCEPT in the case of David Berning designs in both cases. I owned a ZH270 for 13 years and never had to change a tube let alone anything else, amazing reliability in spite of  circuit board mounted sockets.

Agree with Quicksilver and my pair of 64 year old McIntosh MC-60's which are built like a tank including the heavy gauge steel casing.    

ARC power amps blow resistors and bias circuits frequently when a tube fails, causing a return to the factory.

I had a D125 power amp burst into flames with the bias circuit board ruined one time.

Very costly repair.......sold the ARC and never went back to their tube power amps.

ARC preamps have very good reliability though.