@shtr74sims, since you’re considering solid state amps in the $3K price range, I recommend also considering the Holo Bliss KTE. Check out the thread on Headfi on the Holo Bliss KTE. It’s more powerful than the other amps on your list but more importantly is its sound quality.
I own 6 amps that I can use to drive headphones including the Woo WA23, Auris Nirvana, Enleum 23R, Benchmark AHB2 (using banana plug to 4 pin XLR adapter), Holo Audio Serene KTE, and Holo Bliss KTE. The Bliss is my latest purchase and I think it represents one of best values in high end headphone amps in this price range. It’s quiet enough to drive high sensitivity headphones with no noise while being powerful enough to drive the hard to drive Susvara. Added benefits are that it’s an excellent preamp and it comes with a nice metal remote control.