Julia Roberts is one of the finest actresses of her generation. She has made her own place in a male dominated industry and that has been done through sheer talent on her part.
I have always felt that she excels when given a strong role. She has the talent to play all kinds of roles be it comedy, thrillers or feel good movies. She hasn't really done too many action movies and I feel she would be wasted in them anyway.
She has a killer smile and her face is naturally warm and soft. She doesn't have that cold, plastic model look to her and that makes it so easy to fall in love with her. Her face can light up with mischief and she actually is a good enough actress that her eyes portray a lot of emotion too.
She is definately one of my favorite actresses in Hollywood.