Surprisingly, Arkham Knight wasn't as difficult as I was expecting. I never did manage to get the platinum in Arkham City or Origins (I got the hard mode done in Arkham Asylum but not the challenges, so no platinum there either). Arkham Knight was just...easier though. Maybe that or it was more fun, I'm not sure. Either way, Arkham Knight. I also get everything legit all of the time. Or, at least at one time I did. I don't mind speeding along the track.

I think the hardest platinum I ever accomplished would have to be Singularity. The multiplayer was such a grind...it took me like a week to play the story and then a good four months to finally get the multiplayer finished up.

How bout me

Ahh I haven't remember... but LBP was one of the hardest games to get a plat, especially when I needed people to heart me lol.
Another game was MW3, me and my friend had to do spec ops for days (we played all night and I literally fell asleep on the controller).

I forgot about LBP's heart ones. I never did get that plat...I did get the "Play" gold trophy though.

The wolf one was the last one I did, I just couldn't find any.

That's why you don't do co-op with randoms but with a friend that has a mic lol