If there were a Mount Rushmore of rom-com actresses, Julia Roberts would certainly be on it. She's one of the genre's undisputed queens, and we're so thankful for her prolific contribution. That megawatt smile, that much-imitated laugh, that charisma... We almost swear we've seen a twinkle glistening from her eye -- no special effects required. Julia Roberts has done her fair share of rom-com work, but which of her roles shine and which of them fall flat in the likability department? Here are 13 Julia Roberts characters, ranked from worst to best.