I haven't seen a thread like this so I figured I'd ask. If you're like me you check the "Platinum Club" for percieved difficulty and also how many people on the site have obtained the platinum for specific games. I'm just curious as to what your rarest plat is?
Mine is (for good reason) Lucha Libre: Heroes Del Ring. According to the site only 7 other members have achieved it. What's yours? If you want to go by raw numbers or percentages, either way works.
(Percentage-wise mine is Arkham City at 9.28%)