they both suck
BEYONCE. Rihanna Shakira, Madonna, Pink... there are many other female singers who have been working hard and making tons of hits- lady gaga was ok in the first years then she let herself be consumed by fashion and being well out their than rather focus on writing good songs- on her last cd only applause ever went mainstream... she has got to pull it together though
Yes, Rihanna is at the top. Gaga is not even that interesting, a few hit singles here and there but that's about it.