What is your favorite Assassins creed game

This includes
Assassins creed( Ps3 and Xbox 360)
Assassins Creed Bloodlines (PsP)
Assassins creed 2(Ps3 and Xbox 360)
Assassins creed discovery ( Ds or DSI)
Assassins creed Brotherhood(Ps3 and Xbox 360)
Assassins creed legacy( run by FaceBook)