I have the Skywalker Symphony cd as well. The differences in the arrangements and performances are interesting when compared to the original recordings from the film sessions. That and the SE are the only official releases I own (somehow owning the music separately from the film didn't occur to me for a while when I was younger). My aunt has the Anthology set, which I heard at her house a few years ago. ABC's versions are the ones I listen to the most by far now. Particularly for Jedi, I expect a lot of improvement comes simply from using the superior Anthology as a source; but that's not to downplay the importance of his EQ changes, which work wonders in giving a better sound.