Best $10-15K bookshelf speaker?

+1 Joseph Audio Pulsar, musical, many fans with very positive reviews.  

Zu Druid 6 - 101db is an extremely efficient speaker which is typically matched with low wattage tube amps including flea watt.  I’ve demoed Zu a few times at audio shows, but never resonated with me - suggest the OP demo them to decide

Re a bookshelf, I have also been considering the same thing or possibly a small floor stander. Right now I have Thiel 3.7's and Avantgarde Duo's.  I just moved and transporting those things was a royal pain so now I am committed to downsizing my system.  I have been looking at the Kii 7 as a cheaper alternative to either the Kii 3 and Dutch&Dutch 8c.  I have not heard them but plan to next week- I'll report back.
I am surprised these speakers have gotten so little coverage as they seem to be an interesting compromise for size/price/performance (relatively speaking).  Anyway, these might also be worth adding the list as well.
In the past I have heard the Focal Diablo III's matched with Pass Labs XA 60.5's  amps and I was very impressed- maybe current offerings now surpass them but detail and soundstage were spot on and they were musical.  The newer version might be worth considering but I am not sure of the pricing.
 

I second avanti1960’s suggestion of the B&W 805 D4 Signature. Near-ribbon resolution, 3-D imaging, and in growing importance to me, easy to pick up and move.

Mine are powered by a Benchmark AHB-2. The clipping lights don’t blink until the loudness exceeds about 96dB SPL average at the listening seat.

I gave up on tower speakers years ago because the bass never seemed just right in my room. With a pair of JL Audio E110 subs and the B&Ws, the subs are adjusted for perfect very full range sound. And they are easy to pick up. Did I mention that? 

I haven't listened to the Focal Sopra No. 1 but recently changed out Dynaudio Contour 20's to Focal Diablo Utopia Colour EVO's and am very happy with them. Huge improvement in a challenging room. I use them with two Scan-Speak 32W/4878T Revelator 13" Subwoofer’s. I use a preamp for 2.2-channel and share the FL/FR mains, Subs and external amps via Home Theater Bypass to an AVR for TV.

I have a couple other rooms in the house I make the choices in but the Family Room is a compromise as decor is as important a hobby to her as stereo is to me. Her asks were hide the components and as many wires as possible, no tower speakers, and black in color. We are both very happy with the choice. 2-channel is the priority but I am hoping to modify a Viva Utopia stand to use as a center channel stand for my 3rd Diablo.