This depends on what you're using it with. In most cases, we find AES/EBU works best. This varies. An exmple would be WADIA. With WADIA, we have never found anything to sound better than ATT. With Muse gear (w/o the I3W3 in/outs) we find AES/EBU is always the hands down winner (with I3W3 AES/EBU does not compare). On the bel canto digital, Tos link sounds best (and this is very unusual, but explainable). I3W3 (the latest version of I2S) is the best choice, but not available on most digital components.
