Assuming the decoder/DAC is in AVR.
If your content is 24/96 or less, OPT and HDMI are the same.
If you have 24/192, you may need Coax or USB.
Wifi is a little more tricky. Air is a shared medium; can never be full duplex.
If you don't have too many devices on the same network, it should be fine.
So it is not fair to compare wired vs wireless transmission.
Streaming services may have dynamic range compression over and above bit rate limitations.
Cheers,
Raghu