If I recall correctly didn't the original Xbox controller have pressure sensitive buttons? Like the harder you pushed down the button the larger the degree of input was. I remember in Fable the amount of draw back on the bow was matched to how hard you pushed the button.
Why did they remove this from the newer controllers? I thought it was really cool.
I don't remember Xbox pads having that, but PS2 and PS3 pads did. The problem is that they introduce input lag which can impact responsiveness. Neither the Xone or PS4 pads have this feature anymore.