From what I've seen, it looks like the US accounts for around 50% of video game sales revenue. In 2007, that amounted to around $8.6 billion, stripping out the PC revenue reported by NPD at 9.5% of retail sales. So let's really over compensate, and say $25 billion worldwide for consoles.
That was mainly split between 4 consoles (including the PS2) and a couple of handhelds. The PC generated $10.7 billion in the same year according to the report. Maybe the Wii accounted for over 40% of the console revenue and took more, but there's no way the PC is in last place.







