This comparison will be fun to watch.
I see people who say Breath of the Wild will sell 10 million lifetime and I'm just thinking "Slow down. Let's see if it can become the #1 selling Zelda game first and then we'll see if 10 million is doable."
Seeing as how we have no data to compare it with Ocarina of Time, Twilight Princess is the next best thing.
So far, Breath of the Wild is winning, but now Twilight Princess is starting to catch up. With summer coming up and other Switch games like Mario Kart, ARMS, and Splatoon 2 releasing, I anyicipate summer sales for Zelda take be pretty low werkly and for Twilight Princess to catch up.
HOWEVER, things should pick ip exponentially when we get to Breath of the Wild's first holiday season.
This comparison is alredy starting to give the reason to those people, game is never gonna be below TP sales