Nobody seems to have read your question properly, which was which of "these" cartridges do you prefer and why. I have heard everything there except the GAS and Ortofon. My favourite would be the Carnegie, I used this on an ET2/Sota Star many years ago and liked its transparency, sense of ease. I ran it with a tweaked Marantz 7 tube pre straight in at 47k. Listen to primarily Classical & Jazz. My only reservation would be the replacement of the original cantilever boron, aluminium and carbon fiber composite and whether the ruby has altered the sound.