HISTA remains incredible good, and if you don't take my word for it, just visit again next time you go to DLP with someone that has never been there before...
I went there again a few weeks ago with someone that never saw it before, and man - did he jump out of his seat - it was simply hilarious to see how people react to some of the great effects on the show...
Regaring the preshow - you are so right. I personally like the true colours song as well, but then again: compared to the kodak ads, ANYTHING would be great. I don't know why kodak believes such a long ad is increasing their brand awareness at all...
And yes - Captain EO was one of my favourites too - too bad I only saw it about 3 times or so, since it was really good!!!