@VA STAND UP,

ummmm drake released thank me later last year, lol
but yeah i think that drake and mary j. will have bigger first week sales than rihanna, rihanna's album is coming out the same week as mary j. so i think she will get a #2 or #3 album. but rihanna sales are more gradual like you said so in the long run she will out sell drake, but since r&b is not popular like it use to be i don't think mary will sell as much as rihanna.