Here's what I found:
NINTENDO
1) Removed content about the DS having fragile hinges.
2) Upping the number of virtual console games available at launch from twelve to thirty.
SONY
1) I found a guy at Sony who edits a lot about Pokémon, however it wasn't vandalism. I figure that since he's improving Nintendo articles on company time, it counts on this list.
2) Removed reference that the N-Gage preceeded the PSP.
3) "The PS2 burst into the Online World on August 27, 2002 with 5 exciting titles." Okay, that's not biased at all.
4) "The launch of these titles clearly re-defined the online console experience forever!" Yeah, that's not biased either.
That makes the score:
MICROSOFT: 0
NINTENDO: -3
SONY: -4
I'll do Microsoft next.







