Toslink is a crappy interface from an engineering standards perspective. There isn't a lot that can be done to enhance it. That is why toslink cables are relatively inexpensive. IMO weakest part of toslink is the connector. I put Hal-O interconnect dampers on mine to minimize the wiggle.
Between AES/EBU and SPDIF, I think AES/EBU has the best engineering standard. But actual sound quality will depend on the design and implementation of the cable and the interface on the equipment.
Between AES/EBU and SPDIF, I think AES/EBU has the best engineering standard. But actual sound quality will depend on the design and implementation of the cable and the interface on the equipment.