I don't think she's ugly or anything like that. Her pictures are sort of hit or miss. In some she looks fairly attractive, and in others I find her facial shape to be unattractive.
Well, I just did some googling because I thought it was odd that in some pictures I found her jaw line to be unattractive and in others I felt it looked much more attractive. Apparently I'm not the only one as some have suspected she had plastic surgery done to alter the jaw line. Some have also said it's just a combination of her growing up and losing weight. Either way, I think she's more attractive now than before.
That being said, I don't see her as particularly stand out beautiful. Cut through the top rate make up and such, I'm betting she looks fairly average.