I finally found the official Divas roster for WWE's Smackdown vs Raw 2011. There are 11 Divas. Which are: Alicia Fox, Beth Phoenix, Brie Bella, Eve Torres, Gail Kim, Kelly Kelly, Maryse, Melina, Michelle McCool, Natalya, and Nikki Bella.
I heard that Layla will be a downloadable, but, I did hear somewhere else she will be in it, but it just hasn't be confirmed yet. But I'm not sure.

If you want to see these photos, these are the links to each one:

Alicia Fox link



Beth Phoenix link




Brie Bella link



Eve Torres link



Kelly Kelly link






Gail Kim link



Maryse link




Melina link



Michelle McCool link



Natalya link



Nikki Bella link


I, personally, think they all look good.:)