Pass Labs XA25 vs LTA ZOTL40 -- Which creates a greater sense of image palpability?

Terry London separately reviewed both the XA25 and the Linear Tube Audio ZOTL40 and stated that each created a sense of image density/palpability of individual players and a holographic nature of sound better than he'd ever heard before. He used a Linear Tube Audio Micro-ZOTL preamplifier for both reviews.  

Has anyone directly compared these two amps and if so would you mind sharing your observations as to the differences and/or similarities between them?