A modest skim of the past couple of pages would probably give you most of this, but at this point the hierarchy goes:
1. the Japanese BD
. Region A (same as the US), original 2.39:1 aspect ratio, BD50, Dolby TrueHD 5.1 audio.
2. the Dutch BD. Region-free, OAR, BD25, DTS-HD/MA 5.1 audio.
3. the Canadian (Alliance) BD. Cropped to 1.78:1 aspect ratio, DTS-HD/MA 5.1 audio.
4. the UK (Momentum) BD. Region-free (I think), cropped to 1.78:1, BD25, Dolby Digital 5.1 audio.
5. the US (Echo Bridge) BD. Cropped to 1.78:1, DTS-HD/MA 2.0 audio (seriously, huh?
At last report all the BDs had the same supplementary features (commentary track, etc.) basically lifted from the DVD release, though I could well be wrong about the Dutch one. Ultimately, the one that should be avoided at all costs unless you absolutely have to have this movie in whatever form is the bargain-basement Echo Bridge one.