Benz Ruby ZH or Wood SM?

Any thoughts or ideas? According to the website http://www.musicalsurroundings.com/cartr.html , these are both now updated to S-Class status but the differences mainly being the Ruby ZH has the Zebra wood body vs the Bruyere wood of the Wood SM. The other difference is the Ruby ZH .7mV has an internal impedence of 80 ohms (pretty high) vs the .8mV Wood SM of only 24 ohms(much better). And of course, a huge difference in price between the two.

All thoughts, ideas, comments are encouraged and welcome.
Thanks