My rarest and only Ultra Rare platinum is Grand Theft Auto V (2.33%), followed by some Very Rare ones like WWE Smackdown vs Raw 2011 (5.56%) and WWE '12 (6.48%). But I'm much more proud of Metal Gear Solid Peace Walker (7.79%). I'm thinking on getting GTA V's platinum on PS4.

The most common (and easiest) of my platinums is Infamous: Second Son (36.04%).