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.
Ha ha, Battleship (RT score of 33%/54%AS). Stupid, yes. But any movie with Thunderstruck blasting when the s*** is gonna hit the fan has got me. Again, lots of stupidity in it, but there were other aspects that hit a resonance: "Mick Canales" (Gregory D. Gadson) one-on-one with the alien, the sliding turn and broadside, etc. Great art? Nope. Enjoyed it, and have seen it several times.
I find it interesting that certain kinds of "emotional chain-yanking" are deemed socially acceptable, but others are derided.