Tannoy dual concentric speakers in the Prestige series are best, but expensive. Look for used in your price range.
Vandersteen is good, but expensive. KEF LS-50 is nice for an inexpensive speaker. Neither of them is tube-friendly, though.
I've not heard Wilsons.
Salk and B&W are underwhelming IMHO, as are most others in the $5-15K price range. Problems are that they aren't time- and phase-coherent, which as a bare minimum is necessary. I always found B&W to sound boxy and congested.
I don't know if current JBL and Klipsch offerings are as good as the old stuff was, before these companies went mega-church.