The DD vs DTS argument has been argued over for years in the HT world. Bottom line: It all depends on the equipment and soundtrack.
A nice Tag McLaren Processor and some Mark Levinson speakers will yield better comparison results than a sub $1000 receiver. When tested on very high-end gear, audiophiles swear there is
no difference at all between the 2 formats.
Hmmmm, I guess the better thing to say is- it all depends on
your equipment. If you think DTS sounds better then go for it.