I did hear all the speakers you mentioned in complete Shindo systems, albeit only for a short time, different rooms, and different amps.
All the speakers you mention excel at detail, especially in the context of a Shindo system. The Devore Super 8 (with a Aurieges and Montille) are very even handed, detailed, dynamic, with good resolution, but also tend to be a bit leaner in my experience. The Verity Parsival (with a Massetto and Corton-Charlemagne 80) are rich, detailed and very natural sounding. Plucked string instruments like oud and guitar are pleasure to listen to. The Latour (with a Monbrison and Haut Brion/Cortese) have what none of the others have - scale. They are unmatched in detail, unlimited depth and resolution.
All speaker are excellent but work in different applications and for slightly different tastes. The Devores work very well in smallish rooms with lower power Shindo amps, the Verity need more room to breath and much more power to come alive, the Latour need a soccer stadium.
Some speakers that I would look into as well but again very different directions: Cain & Cain Abbys, Klipsch La Scala and Auditorium Solovox.
I would recommend talking or better taking the trip to one of the excellent dealers that carry all three speakers: Matt at Pitch Perfect Audio, Don at Don Better, and Jonathan Halpern at In Living Stereo.