ART7 vs. ART9 vs. OC9X-series vs. Soundsmith Zephyr MIMC Star

I'm interested in opinions of the listed cartridges from those with actual experience.  In particular, I appreciate proper instrument tonality and texture along with a well-defined soundstage and precise / tight imaging.  

I have a competent phono stage (with adequate gain for even the ART7) and accompanying electronics.  The new cartridge will be used on a VPI Aries Extended (original) table on a JMW-12 arm.  Current cartridge is a Soundsmith "rebuilt" Lyra Clavis D.C. on a second arm wand, not to be replaced.

Any thoughts?  

(Thanks!)