Somewhere between 12-14mil. I still haven't made up my mind on whether the controversy will hurt or help sales in the long run. For me personally, it made me want to buy the game just to see what the fuss was about.
As for which I liked more. From a gameplay standpoint TLOU2 by far. Like, it's not even close.
From a story standpoint? TLOU1...and it's not even remotely close. I liked the story in part 2, but the first game was something special. It's rare to get characters that well written n any medium, let alone gaming. And the dialogue was absolutely on point!