Any bad film by Carpenter is enjoyable to me because at least it features Carpenter's enthousiastic atmosphere of Carpenter filmmaking by Carpenter.
I enjoy Tango and Cash solely because of the name of the baddie.
I love all "haunted item" movies (haunted house, haunted ship, haunted submarine, haunted phone, haunted camera, haunted cello, haunted ducts, haunted trench, haunted bunker, haunted tape, haunted hotel, haunted orphanate, whatever, I'm sold at "it's a ___ and it is HAUNTED" pitch), and I love most possession movies.
I love at least half of Romero's zombie movies, and all of Coscarelli's Fantasm movies.
I love several Terence Hill and Bud Spencer movies, which includes He Who He Finds A Friend He Also Like Finds A Treasure Too.
I love Runaway.
I adore Vous n'aurez pas l'Alsace et La Lorraine. Also : Le Maître d'Ecole.
I love L'Aventure c'est l'Aventure. And I adore Boulevard du Rhum.
I like most giant monster movies with Harryhausen stop motion animations.
I really like Lynch's version of Dune.
I can rewatch basically any James Bond movie an infinite amount of times.
I love old gothic movies like the Hammer stuff with Lee and/or Cushing, or the Universal stuff with Vincent Price and stuff.
And I find all Dario Argento movies kinda sweet. If they qualify.