Snape. Although, they were all sad. But Snape's was the most heartwrenchingly beautiful, because he was never understood, but he did so much. And he'd dedicated SO MUCH of his life to this complicated mission so he could help Harry. He wasn't able to be himself for most of his life, and his childhood sucked too. So maybe if he'd lived, that would have changed. Maybe he could have actually had a life again. Maybe we would have seen glimmers of a different side of Snape. I don't know, but the point is, we never get to find out. And his life was a tragedy. No matter how heroic he was. But then again, maybe he was happier to die, because if there's an after life, he'd get to see Lily, and his hard life would be over?
Tonks and Fred also got me. And Sirius. And Dumbledore. Oh and Dobby, that was awful... And...too many I guess. Although I don't mourn Crabbe's death (or was it Goyle?) lol