I'm a fan of the SNES version of Opposing Bloodlines.
In addition, I like the "Foreboding Pre-Battle" music in the SNES version more than the PC-E version (even though it was only use for the first stage's boss).
Lastly, I agree about that 'gap' in music in Vampire Killer. I like that it's not there in the SNES version, even if the music composition is better in the PC-E version.
As for all the other tracks, the PC-E versions are nicer, overall.