There's something about the sound I just love about the I2s input, even after using a DH AES/EBU cable from my Lumin to Terminator for about four days I had to go back to the I2s input.
It depends on the quality of the cable too. I use an MIT AES/EBU, which costs almost as much as an Yggy, but which does make a difference. I get the freakish micro detail from my transport through that cable, others are less successful.