Name your favorite Integrated Tube Amplifier & why?

I've been in the game for ~50 years, and the Linear Tube Audio Z40+ is the best sounding integrated amp that I have owned. Most of my experience has been with SS, but that would include Accuphase, Pass Labs, Bryston, Jeff Rowland, Gato, and most recently, the excellent hybrid Circle Labs A200.

The only qualification that I would make is that I have rolled a couple of the stock tubes, and to great effect on my system.

Associated components:

Aqua La Scala DAC

CEC TL-5 CD transport

Fink Team KIM speakers

My mcintosh  901 is great for bi amping and the crossover is fantastic 300 watts tube ,600 watts solid state. I like Mac house sound and blue meters.enjoy the music

The best integrated I have owned is an Audio Note Meishu Tonmeister Silver.  Beautiful resolution, great MM phono stage, not bass shy 300 B.  Elevated the performance of my two sets of high sensitivity speakers (Audio Note AN-E Spe HE 97 dB, Pure Audio Project Duet 15 96 dB).  

Favorite Lines overall:

1) Audio Research:  gold standard, they tend to just get it right overall, as tube amps go

2) Linear Tube Audio:  most like a good SS amp, which I prefer, works well with a broader range of speakers than most tube amps

3)VAC:  Eye candy, clean smooth, and lovely sound when set up well

4) Rogue:  very good and balanced sound overall, best value

5) MacIntosh:  for midrange lovers, match well with Sonus Faber, iconic looks

Audio Note Oto Phono SE Sig., running E/Spe-He speakers.