I didn't even know people disliked The Dark Knight Rises,but i loved it and I think it was the perfect end to the series. In fact after ME3 had so let me down earlier that year when the film was over I clapped and stood up and said "That is how you end a trilogy Bioware!". To me it finished all the characters arcs as perfectly as they could be with The Joker dead and it didn't go grimdark with out being all sunshine and roses either and that is hard to do. So far it is the only superhero trilogy where I have liked all three films so that goes a long way.
Sorry if I went on but I was not aware there was any hatred to this movie since myself and the friends I watched it with in theaters liked it.