Why would people want Sony to go? They produce some really excellent games, and no matter what you think of the PS3, they've produced 3 consoles (PS1, PS2, PSP) so far each with a fantastic games library. The PS3 is continuing to grow and we can't really judge until the end of its life cycle.
I hate that Microsoft feels the need to copy both Nintendo and Sony all the time, but my final answer would be...
Capcom.
Capcom is awful and fails on every level as a company. Sure they make some decent games, but these games sell way better than they deserve to while fantastic games flop. Plus, should the various developers of Capcom be free, their talents could be fully realized on their own or under the better hold of a superior company.
I hate Capcom!
