Ayre vs BAT amps; SS vs tube

Down to that neverending conundrum of which amp to choose. I have an Ayre C5xe as my front end followed by BAT VK31SE preamp and ended by Von Schweikert 4jrs. Contemplating the BAT VK75SE or Ayre V1xe. Here on Audiogon these 2 amps are about $500 or more apart, Ayre being higher. (Then there is the Ayre V5xe and the BAT VK55SE.) I understand everyones system is a bit different but what do you think. I mostly listen to small jazz & classical. Not much of that lease breaking stuff.