Which one to choose between two 80K$ tube amps?

For that kind of money I would expand my search and consider a few other alternatives.

top end Shindo + efficient speakers
Kondo (japan) 
Boulder
Solution Audio.
VAC
Wavac
Allnic

There are others.  

For that kind of money, spend some time listening! don't just take the word of folks on this forum.  Listen to them with properly matched speakers for each.  In systems with other comparable components (sources, Pre, cables).

Only then will you get the information you need to make a solid decision. 

     If I had the money, I would probably get B&W Nautilus speakers, which sound right with  8 channels of about 350 wpc.  To power these, I would choose the top Audio Research amps, along with at least a 1500 square foot room with about 16 foot ceilings, probably sloped up from the speakers.and a dedicated 3 ton A/C unit to keep the amps from baking me in the room.  I do curently have an  eight hundreds square foo room (a large portion of my house), with 9-14 foot ceilings, and it really opens up the sound, so why not go larger?  Subs?  I'll never know.
     Tubes would be changed regularly, with the old ones rotating into other systems on my estate.
     Of course, I would probably not use tubes, but WTF?  It's a only a pipe dream, and with a pipe, who needs an $80,000 amp?

Should not be necessary to spend $80K on jaw dropping sound. 

My entire rig, which includes a Koetsu onyx and Futterman OTL3s converted to triode, less than $30K. See theaudioatticvinylsundays.com “about” page. 

When people come to listen for the first time, they are gob-smacked. 

Shop wisely, keep your spending down, give the rest to police reform. 

Buy 80k of Amazon

Do you really think anyone reading Audiogon forums are buying 80k amps? No they're reading the Robb report!