Which sales figures are more accurate now? NPD, Media Create, Vgchartz, Famitsu, etc

[JustThatGamer]

If God of War III wasn't still undertracked by 800K units Vgchartz would have more respect from me, just saying... fix it... please?!

Vgchartz gets bashed a lot around the internet but I do like this site, most of the time it's fairly accurate, except for the dismal pre-order tracking.