Different strokes for different folks.
If a game is super difficult intentionally and you don't like it, it just means the game isn't for you. I tried so hard to like Ninja Gaiden on the PS3, but holy hell I just couldn't put myself through that.
Platinums: Red Dead Redemption, Killzone 2, LittleBigPlanet, Terminator Salvation, Uncharted 1, inFamous Second Son, Rocket League