Gamepad without a doubt.
I've been playing lot's of great VC games on it that I normally wouldn't have (I'm not playing GBA or SNES games on a big HD TV). Not a fan of Sony's laziness when it comes to controllers. They're all the same and they have the audacity to make you buy new controllers each generation. The Wii U Pro Controller blows it out of the water with its impressive battery life anyway.
Haven't played with an xbone controller yet.







