One thing I recall is that the Dolby Cinema version had a different color grading than the other theatrical versions. Personally I thought it was uglier. One scene became particularly more yellow and over-saturated in a weird looking way. And some of the way they did the HDR seemed less appealing than the IMAX, IMAX Laser or regular grades. They tended to hype up some bright brights but leave mid-tones too dark, so like Rey’s face was always dark and it kinda changed the tone and clashed. In other versions her face showed up better and was brighter and it fit the mood better.
The UHD, only peeked at it, seems VERY bright for the highlights. The sabers and lighting strikes are like almost seizure inducing and distracting. IMO, it’s one to make sure to set your max brightness limited on playback to tame it back to more normal levels for the super highlights.
The IMAX Laser grading was my favorite (not all that different from the regular grading, mostly just better blacks, bit more DR and pop).