I really disliked how Arwen was written, personally. There's one beautiful, strong, warrior woman in the series and it's not her!
But that's just me. She annoyed me, with her breathy voice and silly outfits. And I wanted to see Glorfindel.
Did you notice that Eowyn had a deeper chin cleft than Aragorn?
Pray tell, why? What does Glorfindel offer that another elf can't give?