Between the two, I would go for the Alexx, despite its age.
I find it more complete top to bottom, fast without the small, euphonic, lower mid-range coloration of the Alexia V.
Mind you, it is probably much more difficult to set-up perfectly. Additionally, I listen to (and judge by) classical music -- which means acoustics instruments and many of them.
Presumably you have the amplification to drive these. When I auditioned they were driven by Soulution amps