Personally I think Dolby does the best ones. dts is just lame and boring especially the piano. Oh the first dts intro was interesting the one where a CD-ROM is flying around and the differences in the audio mix was neat way to test speakers over its frequency response with different sound pressure levels.
I like the Dolby SR introduction Henry Mancini
I recall this trailers when I was projectionist for UCI
The Dolby SR trailer was only used with type SR prints
Henry Mancini Dolby Surround Fantastique The Dolby Fanfare Trailer
http://www.youtube.com/watch?v=St_BoDA0hAY
The regular Dolby stereo trailer was used with type A prints
Dolby Stereo - Our Feature Presentation
http://www.youtube.com/watch?v=nsRIV...eature=related
Then of course there is Sony Dynamic Digital Sound and I still haven’t seen heard an SDDS8 sound mix in cinema since it came out in (1993) only a handful of SDDS8 have been released titles the rest are just regular SDDS6.
SDDS trailer
http://www.youtube.com/watch?v=sl1cV1apn2I