Which is better...Mark VI or Super Balanced Action Alto or Tenor Sax?

Hey, I want to invest my money in a vintage sax (I play both alto and tenor). I was wondering which vintage horn is better the Mark VI or the Super Balanced Action. I have heard both are really good (some people think Mark VI is heavenly) but Paul Desmond played the Super Balanced Action and I love his tone and really wish I could emulate it...which horn would ONE be a very good investment (for the future obviously) and TWO which is a better horn for either alto or tenor