yeah, i like DTS better too, it sounds louder, sharper and crisper than Dolby Digital. You can compare the two on Gladiator.
DTS is less compressed so it takes up more room on the DVD.
There are a lot of misconceptions about DTS.
Let's take your example of Gladiator. The DTS version sounds better because it is an entirely different sound mix. If the Dolby track used the same soundmix, it would sound the same. Another good example is Saving Private Ryan: The DTS version is
so much better than the DD5.1 version, but again...it's a different sound mix.
NOW...let's take an example of a DVD that uses the
exact same sound mix for both Dolby and DTS: Twister. The Dolby track is encoded in 448Kbps, and the DTS track is encoded at full-rate (which is very rare, most DTS dvd's are half rate) which is 1509Kbps!! A lot more than dolby. But you know what? Both tracks SOUND EXACTLY THE SAME!! Different codecs, but identical sound mixes. IMO, Dolby is a much more efficient codec than DTS! I don't think DTS would sound so good if you brought it down to Dolby bitrates.
That being said, I always choose DTS if given the choice because it will either be identical to the Dolby track, or sound better because DTS tracks often get a better mix.
dts has a much higher bitrate than dd....I think its like 1.5 Mbps vs 512 Mbps per channel. Not only that, DTS encoded discs will always have full 6 channel sound. DD may not always be full 6 channel. On some movies they just convert pro-logic to DD and leave out the sub channel and keep the rear channels monural. So just cuz it says DD doesn't mean you get full theater sound. But with DTS you're guaranteed 6 full channels.
90-95% of the DTS dvd's out there are half-rate which is 754Kbps for ALL 5.1 channels. Only very few are encoded at the 1.5Mbps DTS (again, which is for all 5 channels...not 1.5mbps per channel).
I'm not sure what you're trying to say about DD? If it says Dolby Digital 5.1, then it is 5.1 discrete channels, just like DTS. If it says "Dolby Surround", then it's just Dolby Pro-logic like you said.