Since I haven't seen one for Glorfindel and The House of the Golden Flower yet. Here it is! Enjoy!
He killed a Balrog, although he himself fell to his death. However, his sacrificed saved the Gondolin survivors.
He was allowed to live again and sailed back to Middle-earth.
Then he led a force from Rivendell that helped end the threat of Angmar. The Witch King himself fled from Glorfindel.
And he helped save Frodo from the Nazgul.