“Which gamepad should I buy for PC?”
A reasonable question, but with no single good answer, other than “er, it depends, what game would you play on it?”. Gamepad support on PC is decent nowadays, much better than it used to be before the advent of Xbox360, but there’s a mess here. Let’s try to untangle things a bit.
Gamepads used to be available in tremendous variety and have now pretty much converged to a standard layout: 2 analog sticks, a D-pad, 4 face buttons, 2 shoulder buttons, 2 analog triggers, select, start and 2 secret buttons that you mostly press by accident. There’s some variety on top of that, like vibration, left analog positioning, touchpads, motion sensors, but the general idea stays the same between PC, PlayStation 2-4, Xbox 1-360 and even Android (kind of, if you count the NVidia Shield). Would you believe that?