PS3. The PS controller has worked for so long that there was literally a single design change made to it over 15 years to make it closer to it's inferior competitor, and it's only noticably annoying because it's not the button of old. Yeah, the Xbox one has better triggers, but you can buy add-ons to make it more like a real trigger, and it even flattens out at the bottom so it almost wraps around half your finger, and I prefer the more uniform press of the Playstations shoulders, as oppposed to the clicks and triggers of the Xbox.
That's actually the best part of the Playstation controller, uniformity. Besides Start and select, the entire thing is almost symetrical. Two sticks, side by side, same size. A 4 way D-pad, and four buttons, here renamed with gemoetric shapes to avoid the confusion of the letters in it'e predecessor, the SNES controller. The only reason the R/L2 buttons on the PS3 controller are a bit of an annoyance is because it changes the old uniformity of all the shoulder buttons. Still, it works really well, and, as always, the close, simplsitic layout allows for smooth control and various possiblities.
The Xbox controller, by comparison (the original), is a mess. It's huge, it uses letters, but not the old SNES layout, instead of the top shoulder buttons it had the white and black, and the sticks were on a diagnol, as opposed to horizontal layout. In fact, virtually every change made to the 360 controller made it more similar to it's competitor.
