SACD vs. Blu-Ray for audio quality/sonics

My understanding is that DSD is the best choice for recording and storing, at least as good or better than analog.
However, it has to be converted into PCM for mastering, and then back to dsd for pressing the sacd..
As I understand it, there's not one that's better than the other for playback because of the DSD to PCM conversion.  
However, sacds are more simple to use than bluray or dvd.
I wish sacds would replace cd for new releases.

All I know is that DVD audio sounds so much better in my Threshold player and car.   

Hi,

SACD is DSD and Blu-ray is high res PCM.

All things equal, DSD has the advantage.