The "positive reviews from critics" option is probably the closest to what I think. Basically I think it has to be a good movie first and foremost, that people will appreciate on its own terms. Faithfulness is secondary. An adaptation should be as faithful as it can be, but only to the extent that it serves the movie adaptation, and doesn't bog it down or turn it into the first two Harry Potter movies. A filmmaker should keep what he can, but if he has to compromise, compromise in favor of making a better movie. His function here is filmmaker, not fan (if fan he be). And of course, he should take full advantage of any space he has to stretch his imagination and bring his own vision to the table.
I think this is a pretty good idea for a thread (although the poll is pretty limited). It should be pretty revealing as to why certain people here are more than satisfied with Snyder's work, and why others are absolutely critical of it.