Val Kilmer

The 4K has lowered dynamic range.

5.1 is the same on all Blu-rays

4K Blu-ray has Atmos remixes with new effects and changes. The original matrix surround track is better mixed than the 5.1 discrete with more surround and low end engagement amazingly. It also hides the extensive ADR a bit due to the inherent quality dip comparing matrix to discrete formats.

R1 DVD has the original theatrical 5.1 and 2.0 mixes, Blu-ray is remixed

The 5.1 track on the UHD is a remix originally included on the 2024 Blu-ray, but missing the LFE track. The UHD 2.0 track is a downmix of the faulty 5.1, severely lacking bass.

The digital track on the earlier LaserDisc is most likely the same as DVD, minus the lossy compression.

(small caveat: the OG 2.0 track has not been cleaned up)

Alleycat's DC restoration better

Other LDs are probably the same
Blu-rays only have 5.1 upmixes but probably fine

The 70mm 6-track mix has a higher bitrate on the Paramount 1998 DVD, but is more limited than on the THX LaserDisc The Paramount 1998 DVD also has open matte versions in fullscreen 1.33:1 and widescreen 2.00:1 instead of the theatrical aspect ratio of 2.39:1, but the 2.00:1 widescreen presentation is non-anamorphic. The THX LaserDisc is available in both fullscreen 1.33:1 and widescreen 2.00:1 variants.