How would you rate the Well Tempered Reference Arm

Anybody have direct comparisons with other arms? Where does it stand in the marketplace? I currently have a VPI Super Scoutmaster plinth w/SDS ,Super Platter, Periphery ring, HRX record weight, SAMA and a WT Ref. Arm w/Benz Ruby 3. I'm wondering if I'd be better off with one of VPI's arms. Which one (if any) would overtake the WTA? Or,what other brand in the general price range would be better? Discuss,please.