The three speakers you mention are very different but they share in common being nice WAF friendly furniture...is that what you are looking for...something aesthetic?
upgrade from Audio Physic Spark
I recently upgraded my amp to McIntosh MA2275 tube integrated amp and want to upgrade my Audio Physic Spark speakers as well. Due to space constraints, I need a low profile floor standing speaker or a bookcase speaker. I'm currently considering Wilson Audio Duette and Sonus Faber Guarneri. Will I see a drastic improvement in sound with these upgrades? Any other speakers I should consider around 10K range? Thanks.