Wow, those are some crazy comparisons! To me the 1999 DVDs are the best ones, but maybe it's because I've watched them about a thousand times.
I always remembered Ghostbusters being pretty dark films (TV, VHS, 1999 DVD). The 2014 Blu-ray is the closest to 1999, but all the teal and greed, damn.
The whole thing feels very revisionist to me (enhancing colors, huge contrast changes, etc.), stop messing with my memory :-p