Criterion Blu-ray or BFI Blu-ray

Criterion = BFI, both HD resto: source

Criterion Blu-ray

Criterion is warmer and more lifelike than BFI. See DVDBeaver review for more capsBFI is brighter, but that's only because of a gamma bug, a common encoding issue that's easily corrected. After you do that, brightness is the same, though reds are different. Criterion has better encoding and doesn't have the bug so that's preferable.

BFI looks to be more untouched, not sure about Criterion