I don't pay too much attention to critics as it's only a personal thing to them, They have no idea what my likes and dislikes are about any particular film and only put out their own personal feelings on any given review and everyone is different.. If it's a blockbuster film sometimes they give them rave reviews but I might find then average or lacking something, other films they might give low reviews for but are very interesting or entertaining..
Dredd was a fairly good example, It got panned in some quarters and in others got high marks but having been a fan of that particular character for so long now only myself and other fans know what we are looking for out of it and how close the film stays to the vision or image you might have for that character and the world in which they live... I would bet my years wages that I would be in a far better position to rate a film like that for example than anyone who has just spent 2 or even 3 years working on rotten tomatoes... It's just an opinion, and they say opinions are like arseholes... we all have one