Most people I've heard are talking less about her actual face than about her ears and the fact that she constantly leaves her mouth open, which is pretty consistently considered an unattractive habit. That being said, I don't think she's overly attractive or a good actress, both of which are usually necessary for the roles she gets.

And you may just not be very attractive, OP, which is something you need to learn to deal with, probably starting by not comparing yourself to people in the public eye.