I really enjoy the redone character of Arwen in The Lord of the Rings film trilogy. I thought the writers did a good job of taking a character with little but beauty (& her skill at making Aragorn II's banner) to recommend her, and making her into someone worthy of Aragorn II's love. I didn't mind that she replaced Glorfindel because in a movie you have to consider the number of characters you're going to introduce, as well as how and why; Glorfindel was really a minor character and even though he played an important part, that was really his only contribution.