I guess what's your ultimate "guilty pleasure" movie, or maybe "secret pleasure"? Movie[s] that you love, can watch over and over again yet you seem to be alone in liking them?
For me, it's
Dazed and Confused (1993). I even watched it once with my best friend and she said it was the most pointless movie she'd ever seen, just didn't get the whole aesthetic and vibe of it. Like for me, a huge lover of all-things Americana and muscle cars and what-not, I love it to death, it's perfect. She HATED it.
Thankfully, she's the one in the minority it seems, a classic movie!