What gets me here is that the critics don't like this movie, but the fans do. A lot. Mainly because the fans aren't comparing it to Marvel movies, which the critics are wrongly drawing from when reviewing the movie.
Personally, I don't see that as right.
I don't think that is what they are really doing. I think they just think the movie has serious flaws. Plenty of horrible movies get a semi positive response from fans but its usually mindless cgi crap movies. If BvS is content to be that kind of movie then it deserves to be torn apart by critics. Not that critics are always right but I the reviews I am seeing seem to have a valid basis for criticizing it.