On Metacritic, both ARTPOP and Prism have managed to get a Metascore of 61. ARTPOP, however, does it with 3 more reviews.
Also on the userscore, ARTPOP manages to almost double the number of reviews of Prism, and has a much better rating.
So... What does ARTPOP have that Prism doesn't? Why is it more acclaimed, even though Prism has a bunch of mature songs?
Also, how Lady Gaga having fun equals to Katy Perry being mature?
Keep on mind that I love both artists. I'm just curious.