I have lower latency on SPDIF than analogue
But soundqualitywise there's no difference to care about at all.
Basically go with what suits your needs the best.
Personally I have this setup:
1. SPDIF R - amp tone <--- recording
2. SPDIF L - DI track <--- recording
3. XLR Main out L <---- direct monitoring through my interface straight to speakers, so I dont have to go through my DAWs monitoring latency.
This works great for me! I never record stereo.