Only platinum I ever got was for Watch Dogs 2 but I've been incredibly close on a few games.
Mad Max was the most infuriating though, got 91% and only need 1 more trophy to get the plat but it's a ridiculous trophy to achieve, it's something like complete all non-repeating challenges which means you have to do specific things like kill so many enemies etc. but the thing is, the whole map is dead after you've finished the game and everything else.