Which To Choose...Devore Fidelity O/93 vs Zu Soul Supreme ?

Where are you located?
I own the O/93's. 
Whoopycat pretty much nailed it. I would add that over time, there is a slight glitch in the upper midrange. Rightly or wrongly, I attribute it to the two way design without a dedicated midrange. At times this glitch would not make it itself apparent unless I really tried to listen for it, which is no way to enjoy music. At other times, it was readlily apparent. 
They don't do the imaging thing. 
They are very sensitive to speaker cabling. I tried an assortment of better speaker cables and heard clear differences with each. If you buy O/93's, you really want to buy Auditorium 23 speaker cables. 
All that said, I don't regret buying them a bit. I love them. 

Herb Reichert loves the DeVore O93/XA25 combo.

Not to digress for no good reason, but Herb imho has gone off the deep edge. He has no criticism of anything that makes him smile. He loves the audio equivalents of Norman Rockwell paintings. A critic's job is more than being a fan-boy of whatever passes his way.