I was trying to remember where I received the information I presented above.. took me a while to remember, but it was located in
this thread on another forum. Scroll down to the response by "Soundhound". As a short bio, he's a sound engineer for (I believe) both movies and music. And everything he's posted that I've read has been pretty impressive. Of course, that's just my opinion. Anyway, as a completely disinterested party, I've adopted his opinion into my audio belief system.
All that being said, I will still pick the DTS soundtrack over DD sometimes. Usually I don't really care one way or the other though. As for equipment, all things being equal, I'd pick one with both DD and DTS over one with just DD. I'd even pay a little bit more.. I don't know how much more though.
JCD