Nicki may not have stellar album or tour sales, but I definitely think PFRR was a bigger era in terms of presence than ARTPOP. Even despite its near complete lack of quality.
Pink Friday Roman Reloaded was very lyrically raw hip hop and the production was just flawless and experimental. Pound The Alarm, Va Va Voom, Masquerade, Fire Burns, and Whip It >>>>>>>>>>> Artpop