Certainly this thought won't be a revelation, but the cartridge may decide which arm is better.
I heard for instance that Miyabi is great match w/ the Phantom. I have also seen the Transfiguration/Vector combo used quite a bit. No great shock , as Profundo is the Distributor for both lines. Perhaps Vector or Phantom users
could just chime in, and state which cart they use.
I will start by saying I use a Jade Platinum on my Vector 3.
I like this combo a lot, but have also been curious how a Rosewood Sig Platinum would sound. I believe that the Jade is better in absolute terms, but perhaps the Vector may perform better w/ the much lighter RSP. Jebsmith73, it may help others to know what cartridge you intend to use.