Wouldnt it be best world wide as well? It been a while since sony annouced it sold 9 million.
"sold over 9 million copies worldwide as of November 25, 2018."
It sold 9 million copies in it's first 2 and a half months, with christmas still ahead of it. Arkham City sold... around 12m?
Yeah I expect Spiderman has surpassed 12m and is the best selling Super Hero game globally.