+1 @fuzztone and others above. It’s not the architecture but rather the whole implementation and how it works for your system and tastes.
That said, IN GENERAL and just to give you a VERY basic guideline to go by, Delta-sigma DACs will tend to have a more detailed — some may say “digital” — sound whereas R2R DACs, especially those that don’t oversample (NOS) tend to have a possibly less detailed but more “analog” sound. Please do not take this in any way as doctrine as there are “analog” sounding DS DACs and clinical R2R DACs, but just to give you something to initially grab onto in your search. But, as the other wise people have said above, in the end the ONLY thing that matters is what sounds best to you — architecture be damned.