Biohazard, REC was superior because it actually took the attitude of respecting you as an audience-member. Just compare the opening of REC and QUARANTINE. In one, we get hard-working firemen trying to do their job and being rspectful of a lady visiting their fire house. In REC, we get lines of dialogue like "Say anything into the mic." "Ok - 'sh**.'" In REC, the characters work out their issues with eachother and themselves in believable dialogue - we see the good nature of people and their ugly sides, too. In QUARANTINE, we get treated to racial stereotypes and a world where everyone seems eager to squash rats and beat dogs to death. In REC, we get a chilling finale that contains some genuinely disturbing visuals. In QUARANTINE, the ending descends into "horror movie" fluff with deliberate manipulation of camera angles, a monster that floats in and out of frame at PRECISE and "perfect" moments to "maximize" the scares. The final observation? Where REC trusts itself to scare you, QUARANTINE swims through flop-sweat to try to force everything. There is nothing believable in QUARANTINE, nothing scary - from the exposition-dialogue to the monster make-up. REC, on the other hand, lets everything happen in front of you naturally and without featuring grown men saying "LOOKIT MY PENIS! LOOK MY PENIS!"