Why does the Playstation 3 continue to receive poor ports?

[XGamer0611]

Easily the developers. Most lead develop for the 360 and then port it and since most games are released on the same day they rush to make sure that the will meet the release date. What happened to waiting to release the PS3 version to make sure the port is equal to the 360 or better? I remember games like Stranglehold and other were released later then there 360 counterpart.