Dear wattsperchannel: IMHO and due that you are building your system permit me to say that you have big " land " to improve what you already have and does not matters your choosed cartridge or cartridges.
If you already bought your cartridge then a very important subject could be: with which tonearms could mates the better and why?
right now or in the near future is a must to hear in your system different cartridges along the system improvements you can achieve. I can't say why you name it those three models when exist others from Clearaudio, Ortofon, ZYX, Dynavector, VDH, etc.
Example, the Colibri with the right whole set up is almost ( overall ) unbeatable.
Anyway, good luck in your endless quest of audio Nirvana.
Regards and enjoy the music,
R.