The third one was bit unexpected as the second one was supposed to be the end of death's mission. Most of the people who should have died in the second film's car pile up, were connected somehow to the people who died in the first film. The third film should have explained what happened to the two remaining survivors from FD2, so we knew why death had started it's plan again. I thought FD1 was the scariest, FD2 had the best death scenes and FD3 was just hilarious. I saw FD4 at the cinema in 3D and I liked it. The storyline was not great, but the effects were good. I am looking forward to FD5 though.