If you had to narrow your choices to 4 - 5 speakers

+1 Rockport ! 

ATC

Acora

Magnepan

Magico

My favs with a strong amplifier, though Acora is always shown with a tube amp

I like to be surprised by relatively inexpensive speakers ie not more than $10-20K:

Spatial Audio

PureAudioProject

Zu Audio

ProAc

But I gotta say if I were at Axpona I'd be very curious to hear Acora given all the buzz.

Thanks all for the suggestions. I've already, and was close to pulling the trigger on some JA Perspectives, and still might. But since I've decided to go to Axpona I'd thought I'd hear from this forum. I believe the Acora's usually show only their very expensive speakers but will at least hear them. 

Thanks again.

I'd visit the High Water Sound room and listen to whatever speakers they have brought.  Pretty eclectic and not for rock, but to my ears, the sound has been breathtakingly natural, which I attribute to their love of music and their skill of matching components,  Kind of off the corporate path.