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.
Absurdist and slapstick comedies are often a good answer to this question. I would argue that movies like Step Brothers and Wet Hot American Summer have some comic actors doing some of their best work. But people who aren’t a fan of the genre are going to shit on those movies.