I only enjoyed/Finished Far Cry 3, Metro Last light as FPS game.
cant think of other fun FPS games. How about Sleeping Dogs,Mass effect 3, assasin creed black flag,Thief,Splinter Cell Blacklist, Tomb raider,Remember Me,Dead island Riptide,Hitman: Absolution.
Just finished Watch dogs today and it was a incredible expirience. The only problem is that i was running everything on low res. cuz playing on a 740M Nvidia. :S But still it was fun!