I'll vote for the Eastern Minimax with NOS tubes and the current version of mods available through morningstaraudio. Very quiet (can't hear a thing through the Signature 70s), extremely dynamic, excellent bottom to top smootheness, and responds very well to NOS tube rolling. Seems to be a very good and popular choice in front of unforgiving digital amps. $1350 modded, another $100 - $200 for NOS tubes and you'll be amazed. Tubes I'm currently using: Genalex 1950s British Military 6x4/u707, 12FQ7 in buffer position (requires mods for this), and Amperex Bugle Boy 12Au7 in gain stage. No need for matched pairs, only have to select tubes with good triode-to-triode balance.
-- Jim