In my review
I said that only House of Flying Daggers looked better than my original DVD. The colors were sharper and brighter, and I could see more detail. I compared the Blu Ray to regular DVDs in 480p.
I noted that my superbit Fifth Element was BETTER than the Blu Ray
Underworld Evolution regular DVD was brighter and had more color than the dark image of the Blu Ray and that
Terminator 2 Judgment Day looked about the same.
I wasn't able to compare Blu Ray directly to HD DVD. I had tried a HD DVD but only had one movie to compare the Last Samurai. It did look better.
I actually returned both players, I don't think either one is ready for prime time yet, but I really loved the raw uncompressed audio formats of both, it gives DVD audio a run for the money!
I think its the discs that make blu ray not look so hot though, because my experience with HOFD showed that blu ray has potential, but not all the movie releases seem to take advantage of it. When I reviewed it thuogh, I literally put the same movie in each player, set the settings the same, and switched back and forth, back and forth noting every subtle (and not so subtle difference)