During development of the PlayStation 4 hardware, Sony experimented with a DualShock 4 controller design that was similar to Xbox 360, manager of the product planning department Toshimasa Aoki told GamesBeat.
"For the analog sticks, we did test having the analog sticks on top, since the Xbox has the left side on top [above the D-pad]," Aoki told GamesBeat "Especially from the shooter teams — we got feedback that that's what they wanted. They knew that consumers liked the 360 for shooters."
"The feedback from the user test team said that we needed to test this version, the Xbox version, and this version," said Aoki. "[But having the two sticks symmetrical on the left and right sides] is kind of in our DNA. The prototype team, myself, and also the management team really felt that having this look is the PlayStation look, and we had to keep that."
Lead architect Mark Cerny previously revealed that the DualShock 4 controller went through several prototypes, including one that sensed players' stress through sweaty hands. PlayStation 4 will support up to four controllers at the same time, while the Xbox One will support up to eight controllers at once.