Inspired by the linked XKCD. Using 60% instead of 50% because that's an easy filter to apply on rottentomatoes.
I'll go first: I think "Sherlock Holmes: A game of Shadows" was awesome, from the plot to the characters ,and especially how they used screen-play to highlight how Sherlocks head works in these absurd ways.
Jingle All the Way (the original, not the abomination with Larry the cable guy). 19% RT.
I think most people think it's too "weird", but I genuinely love it. It's got all the great 90s tropes, a cartoony core in a live action movie, an anti-consumerism message in a Christmas movie, and Phil Hartman. What's not to love?