For me, the original PlayStation controller had the distinction of being the first gamepad since the SNES and Genesis days that I didn't absolutely hate.
It just seemed like a logical progression from the great older controllers; it was a little bigger, it had more buttons, and it was streamlined and light. Now, the addition of the rumble in the PS2 era did nothing for me and I didn't like the retooling of the triggers in the PS3 generation, but the controller has remained fundamentally the same.
The point is, can we look at the current iteration, the DualShock 4, and say it's the greatest gamepad ever? It's longer and I think it's more comfortable than any of the previous controllers, and the button layout and triggers is just about perfect, as it has almost always been. I thought I'd really despise the touchscreen because it's a wildly unreliable tech fad that is about 1/100th as precise as pressing a button. But most developers don't try to abuse it and don't force you to do stupid things with it. In many cases, you either just swipe across or it's used as another button.
I have liked the Xbox controllers after they went away from the massive pad the original Xbox launched with, but PlayStation is still the easy winner for me. But is the PS4's controller really the best in history…?