See, what I was trying to point out with this is that, while less of Gaga's discography becomes a major hit, that which does become a major hit for her is far bigger, usually, than that for most other pop girls. What other female in the pop world charts not one, but two singles from the same era on the IFPI charts, let alone does that twice?

That's certainly not to say the other girls' hits aren't big and influential, but come on. 9m+ twice, and 8m+, and two 7m+ hits. Both Katy and Rihanna have only one possible entry for 2012 so far, and that's assuming they aren't surpassed by too many other songs. Either way they'd be up to 3 total, not 5.

Queen Rihanna

I see what you're saying, and I agree. Katy is only on two albums, so let's not jump the gun too fast. But when comparing these 3 artists together, as of now I do think Katy is the singles queen. We'll so who is in the future.

Critical reception, impact, music videos, and performances = LADY GAGA
Chart success, sales success = Rihanna

Gaga

Singles sucess: Perry

i can't deny umbrella, don't stop the music, what's my name, we found love, or where have you been, so rihanna.

Katy Perry

Rihanna

the one with hits like umbrella, DSTM, rude boy, we found love, only girl, disturbia, take a bow, WHYB :P

katy isn't far behind

Rihanna and Gaga. Probably in that order. I'm still so pressed YDO flopped.

Rihanna or Gaga

I find Gaga solo singles better and more consistent than Rihanna's. Rihanna's is a mixed bag each era with always a few duds.

The other girl is a non entity.

34 top10 hits already?