I think that “It Follows” would be one of the easier ones to survive, all you have to do is put enough sex partners between you and it. Also, it seems to walk everywhere so moving coast to coast or out of country would help, if it gets too close.

As terrible as the movie is I think it would be near impossible to survive is “The Happening”. All of humanity would need to move to places inhospitable to support plant life and not be able to grow crops of any kind.