I heard the UK BD has decent audio, but is missing a line (or, indeed, a single word) from around where the side change was on the laserdisc, so probably came from that source (unless, of course, both just happened to occur at the same reel change).

For the best video, you'd probably do well to pick and choose your scenes from various releases. There's also the Australian release to consider, which may or may not have some unique characteristics. There's a discussion about that one here:

http://forum.blu-ray.com/showthread.php?t=202998

Koch gets my vote for best PQ for Inferno, though some prefer the tweaked colours (from the same master) of the US release. Not sure how the Blu Undies 7.1 and Arrow 5.1 remixes stands up to Koch's original 2.0.

Mother of Tears? Nyeah...