This Anti vs.The Pinkprint argument is pretty pointless. On paper, they both did the same. Both are 2x Platinum and sitting around 700k pure sales.
But Nicki honestly did do better, because she got 2x platinum without Samsung buying a million copies. I will never get behind being platinum off a corporation buying your albums. It's a cheap way to soften the blow of a flop era.
So, +1 for Nicki overall. But on paper, the stats are the same.
But right now in 2017-2018? Rihanna's next project is going to dust Nicki's next one unless Rihanna releases the worst music of her career. And even then, it would probably perform better than "NEEDED A PAP!!!!!1111111"