I'll guarantee you that if you listened to a properly calibrated system with a sub capable of really doing 20Hz or lower and in a properly treated room, you'd run, not walk, to ditch the DTS when you heard it's overblown, over EQ'd bass compared to DD. Don't get me wrong, DD has its share of faults. I just prefer them to DTS's.
Now, on subs that are a little short or in a room that has issues, maybe its masking some of them by sheer brute force.
Its all personal preference. Personally, I prefer bass that is matched in level and realistic rather than bass that just overpowers the rest of the tracks and is artifically hyped up.