At least, Gaga has her concepts, right? I mean, she doesn't say her music is about to get "*****ng" dark, and then release a super bright cover and, right after, contradicts herself and the things she said. She does innovate, even though I hate 'Born This Way', it was something completely and conceptually different from the 'The Fame' & 'The Fame Monster', so is 'ARTPOP'.
I do like both covers, actually. But I think 'ARTPOP' is better and seems to be more revolutionary.