The best optical cable you have found.

[IBSTORMIN]

First I'd like to say to all those that say I'm an Audiophile when I tried to say I wasn't, this thread has me convinced! I can hear a difference in Optical cables. I started with a Sony from Best Buy and found a Fusion from Radio shack that sounded better. Even my son, who inherited my ear, could tell a difference without me telling him. That was years ago. I now have a DVD player & pre/pro from Integra Research that have four different ways to output sound for stereo. For DVD-A the sound is transfered from DVD to pre/pro through a DB-25 computer cable and I can also use it for stereo, which is the BEST sound of all. I am using Blue Jeans cable RCA's for Digital coax and Analog output and they sound virtually the same. The worst sound comes from my Digital Optical out. Considering the DVD & Pre/Pro both have the same DAC's and Apogee clock, the digital sound, in theory, should be the same as what comes in analog, the differences being only in the transfer method. The RCA cable sounding the same as the Digital Coax proves this theory but tells me the optical cable is losing something.
After that background, here is my question - What can someone who has already sat down, compared and found the best optical link recommend? Or should I just stick with my Coax connection?