The people saying sony say it because they have been dominant the past two gens, completely took sega out of the map, and nearly took nintendo out of the map last gen (they had an amazing console, and earned there way to the top)
People saying Microsoft have a point, microsoft has been BUYING themelves to the top, and they declared they want to take the PLAYSTATION BRAND out of this gen, it was so cold what they said this e3, "We are aiming on taking out the playstation brand, and all of there games can be are on our console now."
Then they announced FF XIII, believe it or not the music had an evil betrayal tone to it.
As for nintendo, imo they are doing well, earning there way to the top just like sony did with the playstation. Just I hate the direction they are going, but hey they arent trying to take anyone out of the inustry and stealing that companies games now are they?