I think you would never really get a true answer unless you ab them both in "your system". Cables do make a significant contribution to your system but at the same time they react differently in each and every system.
Both brands you have chosen are top performers. I do have more audio friends who swear by the Purist line than the Kubala. It might be because Purist has been around longer. Who knows but unless you try them in your system, nobody could tell you if one is better than the other.
This hobby is a life long marathon so take your time and try them both... One more thing I dont think you must use the same brand from start to finish. Personally I combine a number of different brands for the best sound.
Nick
Both brands you have chosen are top performers. I do have more audio friends who swear by the Purist line than the Kubala. It might be because Purist has been around longer. Who knows but unless you try them in your system, nobody could tell you if one is better than the other.
This hobby is a life long marathon so take your time and try them both... One more thing I dont think you must use the same brand from start to finish. Personally I combine a number of different brands for the best sound.
Nick