What did the PS3 do that the Wii and/or XBox 360 copied?

[Loud_Hot_White_Box]

HD media drive.

Main problem with the whole thread is that the question posed by the OP is framed terribly.  Of course the console releasing first will have an advantage when the question is framed this way.

What DOES matter is who does "x" best, as Matzy said.