I understand this is an old thread, but thought I give my thoughts anyway. Obviously, it's personal preference between either Dolby Surround or DTS: Neural X as with which is 'better'. My personal preference is Dolby Surround by a considerable margin. That's not to imply that Nueral isn't any good, but I've found that Dolby Surround is more balanced, nuanced, and natural. I tested both in certain key scenes (which I chose) from 'The Predator' (pretty naff movie, but reference sound design). Without going into a long treatise here, in summary I personally find that Dolby Surround reproduces ambience and music better by expanding the entire sound field upwards, thus placing ambience more naturally around the sound stage and making it feels larger and more spaced out (in a good way). Individual effects (or 'objects') that are supposed to be in the height (I use 7.2.4 in ceiling speakers) are also accurately placed as well. For example, in 'The Predator' at around the 34 minute mark, a shotgun blast is fired within the bus directly upwards and the shot and reverberation is well established and cleanly heard using Dolby Surround. Conversely, Nueral X normally places only key sounds or objects with it thinks out to be placed above in the height channels and virtually ignores ambience and music expansion. Also, I found that with Neural X, the soundstage becomes more unnaturally aggressive to the point of being offensive, and that the LFE's from my two subs (dual calibrated using Audyssey Dual Sub EQ) are also unnaturally pronounced, aggressive, and less balanced/well integrated into the sound field. And using the previous case in point about the shotgun blast in the bus, that Nueral X was considerably more aggressive but, but again felt unnaturally so within the sound field. With Dolby Surround you can hear the shotgun blast and the reverberation upwards perfectly loud and clear but simply sounds more natural and not as forced as when Nueral X attempts the same thing.