I vote for the Vandersteens, 2C perhaps. IMO they possess the attributes you're looking for.
I would recommend the Philharmonic 1s. They are only $1600 new. They are easily the best speaker under $10k that I have heard. If you can stretch to $2k then you can get them with a RAAL tweeter instead of the standard Fountek. A problem is that it might be very hard to review them. Only a few have been sold so far. Another issue is that they are pseudo open baffle and you would need to be willing to play with position and dampening material with them to get them to their potential. They are totally transparent when set up properly.
I hsve alon v Mkii's. I drive them with a cary slp 88 pre-amp and a pair of cary v12s that are used to bi-amp the speakers. I have always been happy with the speakers and chose them over the B&W 801.(even though the B&W was what I had been saving up to buy) I also considered the Vamdersteen 2Ce or i ( whatever was current at the time) at the time I purchased the alon v's. Of course we all know that on an individual basis there is a lot of subjectivity in our choices. I would proceed cautiously as it would be easy to end up being less happy than you are now.
I've enjoyed a pair of KEF 104/2s for more than a decade. They would seem to satisfy your criteria: they image well, provide fine timbre representation with a sense of air and transparency, and sufficient LF response to track a jazz bass convincingly. They do not have the LF response to reproduce the pedal notes of a pipe organ. I use a pair of Velodyne HGS-15s crossed at 60 Hz to supplement the 104/2s LF response. Finally, they are very efficient and present an easy load for amps.
Of the speakers you listed the Aerial 10T's are my top choice. When set up right the Aerial's are world class speakers even when compared with current standards. I'm not a B&W 801 expert but I do realize there are many models in that series. Some models could equal or exceed the Aerials in some respects. The final decision can be answered with which speaker mates the best with your current equipment, and which is the most cost effective to repair.