Squeezebox duet best sounding output?

I just purchased the DAC, it has not arrived yet. I am looking to spend up to a couple hundred for a decent cable. Buying both a toslink and a digital would cause domestic unrest. I need to pick one and live with it for a while. Thanks for the responses

Coax is almost always assured to be better.

Coax sounds a smidgen better than Toslink from my Duet Receiver to Stello DA-100. Coax has potentially higher bandwidth than Toslink. Toslink can save you from a ground loop hum from a CATV box, but generally better to stick with Coax.